下列可以使寄存器AX内容清零的指令有（)？

A.XORBX,BX

B.MOVBX,0

C.SUBBX,BX

D.ORBX,0

A.NOT AX

B.XOR AX,0FFFFH

C.OR AX,0FFFFH

D.AND AX,0FFFFH

A.MOV[BX],AX

B.MOV[BX+2],AX

C.MOVBX,AX

D.MOV[BX+S1+2],AX

A.SUB AX,AX

B.SBB AX,AX

C.XOR AX,AX

D.CMP AX,AX

A.MOV AX,TABLE

B.MOV AX,[TABLE]

C.LEA AX,TABLE

D.AND AX,LABLE

A.AND AX,0FFFFH

B.OR AX,0FFFFH

C.ADD AX,0FFFFH

D.MOV AX,0FFFFH

A.(AX)=0050H

B.(AX)=0012H

C.(AX)=1234H

D.(AX)=3412H

A.0017H

B.0077H

C.0107H

D.0071H

A.XCHG AH,AL

B.XCHG AL,AH

C.MOV CL,08H ROL AX,CL

D.MOV CL,08H RCR AX,CL