What is a reference to a variable in C++?Select one:a.The size of a variable in computer memoryb.The type of a variable in computer memoryc.The address that locates a variable in computer memoryd.The address that locates the start of a program in computer memory

Which operator is used to obtain the memory address of a variable in C?

What does the address operator (&) return in C when applied to a variable?Marks : 1Negative Marks : 0Answer hereThe variable's valueThe variable's memory addressThe size of the variableThe square of the variable

What is the purpose of declaring a pointer variable in C?Marks : 1Negative Marks : 0Answer hereTo create a new variable.To store the address of another variable.To perform mathematical operations.All of the mentioned options

What is a variable?*1 pointA box(memory location) where you store valuesa type of graphicsData typea type of memory

variable is a name given to a memory location to store some value. Since the memory location can store different values during execution of a program, the name used to refer to it, is called a variable. Since variables are a part of identifiers, they follow the same naming conventions. Like identifiers, a valid variable name can start with an alphabet or an underscore ( _ ) and later have a combination of one or more letters, digits and underscores. A few examples of valid variable names are : sum,total,average_marks, etc. When creating a variable, we should mention the type of data (for example, integer or character) that it would store. This is called the data type of that variable. In a C program, variables should be declared before their usage. The format for declaring a variable is data_type variable_name;. For example: int count; // int is the data type and count is the variable name The above declaration can also be combined with initialisation. In such a case, the format for declaring a variable is data_type variable_name = constant_value;. We shall learn more about data types and constants in the later sections. Given below is an example of declaring and initialising a variable in the same line: int count = 9; // Here the variable count is being initialised to a constant value 9 Invalid #include <stdio.h> void main() { printf("age : %d", age); int age = 34; // this is the declaration statement } Valid #include <stdio.h> void main() { int age = 34; printf("age : %d", age); } Select the correct statements from the given statements. Variable is an identifier which is used to store data. The value stored in a variable is fixed. It cannot be changed once it is initialised to a value. Variable is the name given to a memory location. The type of data stored in a variable is specified by its data types. Reason for late submission Eucs.Learner.Contents.LateSubmissionModal.Input.Placeholder Please enter at least 15 characters