What will be the output of the given program?

#include<stdio.h>
void main()
{
      int  i=10;
      printf("i=%d", i);
      {
            int  i=20;
	    printf("i=%d", i);
	    i++;
	    printf("i=%d", i);
      }
      printf("i=%d", i);
}

A. for loop B. if statement C. switch case D. while loop

A. Continue to the next iteration B. Exit the program C. Terminate the loop and exit it D. Skip the current iteration

A. Execute the 'if' block B. Execute the 'else' block C. Execute both 'if' and 'else' blocks D. Skip the 'if' block

A. switch case B. for loop C. if statement D. while loop