Assume the following C variable decleration

int *A[10] , B[10][10];

Of the following expressions

1. A[2]
2. A[2][3]
3. B[1]
4. B[2][3]

which will not give compile time errors if used as left hand sides of assignment statements in a C program.

A) 1,2 and 4 only
B) 2,3, and 4 only
C) 2 and 4 only
D) 4 only

I have tried this on a gcc compiler.I assigned the value '0' to all the above variables.Only the third one showed an error.I can't really understand the reason.Can someone please expalin why that is.?

Thanks