Assume the following C variable declaration: int *A[10], B[10][10]; Among the…

Expression I: A — Valid LHS

• A is a collections of 10 pointer variables. A targets the third pointer variable inside that array. Because it is a normal pointer variable, its value (the memory address it holds) can be updated at any time.

Expression II: A — Valid LHS

• Because A is an int* pointer, attaching a second subscript `` instructs the compiler to perform pointer arithmetic. It travels to the memory address stored in A, moves 3 integer steps forward, and looks at that specific integer. Since it resolves to a regular int variable in memory, you can overwrite it.

Expression III: B — Invalid LHS (Triggers Compile Error)

• Feedback: B is a 2D array, which means it is an array of arrays. B references the entire second row (an array of 10 integers). In C, an array name or row identifier decays into a constant pointer to its first element. You cannot assign anything to a constant pointer, nor can you overwrite an entire array block at once using an assignment operator.

Expression IV: B — Valid LHS

• While you cannot assign a value to an entire row (like B), you absolutely can assign a value to an individual element inside a row. B pinpoints the specific single integer at row 2, column 3. It is a modifiable l-value.