C program: Multiple Choice

1 How many times will the loop body be executed? for (int i=5;i>0;i--) for (int j=0;j<4;j++) {......} //loop body A. 25 B. 20 C. 24 D. 30

2. With the following declaration, sizeof(a) in a 32-bit operating system is ____ . struct A{ double x; float f; }a[3]; A. 36 B. 24 C. 12 D. 6

3. Which identifier is valid? A. TOM B. char C. 1st D. You&Me