ANSWER : D

Explanation :

 char x[ ] = "hello hi";        printf("%d%d",sizeof(*x),sizeof(x));

"sizeof" displays the number of bytes occupied by an entity in the memory.

sizeof(*x) = 1 byte ( size of 'h' is one byte)

sizeof(x) = 9 bytes ( 'h' 'e' 'l' 'l' 'o' ' ' 'h' 'i' '\0' )