Use the following variable definitions to answer parts A, B, and C: .data var1 SBYTE -4,-2,3,1 var2 WORD 1000h,2000h,3000h,4000h var3 SWORD -16,-42 var4 DWORD 1,2,3,4,5 A) For each of the following statements, state whether or not the instruction is valid: a. mov ax, var1 b. mov ax, var2 c. mov eax, var3 d. mov var2,var3 e. movzx ax, var2 f. movzx var2,al g. mov ds, ax h. mov ds,1000h B) What will be the value of the destination operand after each of the following instructions execute in sequence? mov ax, var2 ; a. mov ax,[var2+4] ; b. mov ax, var3 ; c. mov ax,[var3-2] ; d. C) What will be the value of the destination operand after each of the following instructions execute in sequence? mov edx, var4 ; a. movzx edx, var2 ; b. mov edx,[var4+4] ; c. movsx edx, var1 ; d.