What will be the output of the following C code (Assuming size of int and float is 4)?

#include <stdio.h>
union
{
    int ival;
    float fval;
} u;
void main()
{
    printf("%d", sizeof(u));
}

A. struct B. record C. class D. object

A. Variables B. Properties C. Objects D. Elements

A. Function B. Another structure C. Enumeration D. All of the above

A. . (dot) B. -> (arrow) C. :: (scope) D. , (comma)