人民检察院还通过参与行政诉讼对公安机关行使行政职权的活动是否合法合理进行监督。 ( )

—It was surprising that your brother should have________my sister the moment he saw her yesterday.

—Yes, especially since it had been 30 years since they last saw each other. [ ]

A. picked out  

B. figured out  

C. turned out  

D. worked out