Need help on assembly language

2. Given the following declarations A DW 1,2,3 B DB4,5,6 C LABEL WORD MSG DB ABC and suppose that BX contains the offset address of C. Tell which of the following instructions are legal. If so, give the number moved a. MOV AH, BYTE PTR A b. MOV AX, WORD PTR B c. MOV AX, C d. MOV AX, MSG e. MOV AH, BYTE PTR C