What is actually passed if you pass a structure variable to a function? a) Copy of structure variable b) Reference of structure variable c) Starting address of structure variable d) Ending address of structure variable

If a variable is a pointer to a structure, then which of the following operator is used to access data members of the structure through the pointer variable?

Q1. Which of the following statements about structs and functions is not true:Struct variables can only be passed to functions via a pointerThe individual components of a struct variable can be passed to a function if required, as if they were independent variables of the given typeStructs can be created inside a function and then their values returned using the standard return statementThe components of a struct variable passed as an argument to a function can be individually modified within a function, but the changes will be lost when the function returnsIf a struct variable is passed into a function via a pointer, the function can use the -> operator to alter individual components within the original struct variable.

Explain the concept of pass by reference

n the following code,int f(int *a) {  *a  = 20;}int main() { int m = 30; f(&m);}a.The parameter passing is "pass by address", and the "address of m" is passedb.Parameter passing is by value, the value passed is "address of m", and copied into the argument *a c.Parameter passing is by value, the value passed is "m", and copied into the argument a d.Parameter passing is by value, the value passed is "address of m", and copied into the argument ae.The parameter passing is "pass by reference" and variable a is a reference to variable m.

Which of the following can never be sent by call-by-value?a.Variableb.Arrayc.Structuresd.Both Array and Structures