What is the key difference between a structure and a union in C?*1 pointA structure can store multiple data types, a union cannotA union can store multiple data types, a structure cannotIn a structure, only one member can be accessed at a timeIn a union, only one member can be accessed at a time

What is the primary difference between a structure and a union in C?Marks : 1Negative Marks : 0Answer hereStructure allows nested membersUnion allows nested membersStructure does not allows multiple membersUnion allows only one active member

structures in CA structure is a user-defined data type available in C that allows to combining data items of different kinds. Structures are used to represent a record.Defining a structure: To define a structure, you must use the struct statement. The struct statement defines a new data type, with more than one member. The format of the struct statement is as follows:   struct [structure name]   {       member definition;       member definition;       ...       member definition;   };unionA union is a special data type available in C that allows storing different data types in the same memory location. You can define a union with many members, but only one member can contain a value at any given time. Unions provide an efficient way of using the same memory location for multiple purposes.Defining a Union: To define a union, you must use the union statement in the same way as you did while defining a structure. The union statement defines a new data type with more than one member for your program. The format of the union statement is as follows:    union [union name]    {       member definition;       member definition;       ...       member definition;    };Similarities between Structure and UnionBoth are user-defined data types used to store data of different types as a single unit.Their members can be objects of any type, including other structures and unions or arrays. A member can also consist of a bit field.Both structures and unions support only assignment = and sizeof operators. The two structures or unions in the assignment must have the same members and member types.A structure or a union can be passed by value to functions and returned by value by functions. The argument must have the same type as the function parameter. A structure or union is passed by value just like a scalar variable as a corresponding parameter.‘.’ operator is used for accessing members.Consider the following C declaration. struct {     short s[5];    union {          float y;          long z;     }u; } t;Assume that objects of the type short, float and long occupy 2 bytes, 4 bytes and 8 bytes, respectively. The memory requirement for variable t, ignoring alignment considerations, isa.22 bytesb.14 bytesc.18 bytesd.10 bytes

correct answerWhat is the purpose of the union keyword in C?OptionsTo declare a new data typeTo create a structureTo define a constantTo allocate memory for an array

What is the similarity between a structure, union and enumeration?a.All of them let you define new valuesb.All of them let you define new data typesc.All of them let you define new pointersd.All of them let you define new structures

What is a structure in C language?Answer areaa) A structure is a collection of elements that can be of same datatypeb) A structure is a collection of elements that can be of different datatypec) Elements of a structure are called membersd) All of the these