—Your handbag is very beautiful. How much does it cost?

—It's not expensive. I _____ only 50 yuan for it. [ ]

A. paid

B. spent

C. cost

D. bought

某甲是间歇性精神病人。某日，某甲喝醉了酒，把某酒店老板打成重伤，在群众抓捕他时，某甲因惊恐而精神病发作。则某甲：

A．应当负刑事责任，但可以减轻处罚

B．应当负刑事责任，但可以从轻处罚

C．不负刑事责任，因其是精神病人

D．应当负刑事责任