已知X、Y、Z三种金属能发生下列反应：X+H₂SO₄=XSO₄+H₂↑；Y+Z(NO₃)₂=Y(NO₃)₂+Z；Z+X(NO₃)₂=Z(NO₃)₂+X。则X、Y、Z三种金属与氢的活动性由强到弱的顺序为

A．X>H>Y>Z

B．X>H>Z>Y

C．Z>Y>X>H

D．Y>Z>X>H