阿昔洛韦的化学结构为

A.9-(2-羟乙氧甲基)鸟嘌呤

B.9-(2-羟乙氧甲基)黄嘌呤

C.9-(2-羟乙氧甲基)腺嘌呤

D.9-(2-羟乙氧乙基)鸟嘌呤

E.9-(2-羟乙氧乙基)黄嘌呤