单项选择题

A.低地址端的RAM芯片组,片选逻辑是:A15非·A14非·A13非·A12非·A11非
B.高地址端的RAM芯片组,片选逻辑是:A15非·A14非·A13·A12·A11非
C.低地址端EPROM芯片,片选逻辑是:A15非·A14非·A13非·A12
D.高地址端EPROM芯片,片选逻辑是:A15非·A14非·A13非·A12非