ANSWER : D

Explanation :

int a = 3,b = 8;    printf("%d", a<=b);

The condition "a<=b" is true , hence "1" gets printed out.

If the condition is false "0" gets printed out.

Notes :

General Form :

printf("format string",list);

List can contain variables , constants or expressions . However list is optional.

In the above given problem "a<=b" is an expression which is a perfectly valid syntax.