---- Have you bought the best-sell book in the store near our school?

-----Yes, I _____ it three days ago,but I hear that they ________

A．have bought, sell out

B．bought, have been sold out

C．bought, have sold out

D．have had, have been sold out

要从代号为A、B、C、D、E、F六个侦察员中挑选若干人去破案，人选的配备要求必须注意下列各点：
　　①A、B两人中至少去一人。
　　②A、D不能一起去。
　　③A、E、F三人中要派两人去。
　　④B、C两人都去或都不去。
　　⑤C、D两人中去一人。
　　⑥若D不去，则E也不去。
　　由此可见( )

A．挑了A、B、F三人去

B．挑了A、B、C、F四人去

C．挑了B、C、E三人去

D．挑了B、C、D、E四人去