A Salesclerk at Sparkle Jewelry Store Observed a Customer Remove

A salesclerk at Sparkle Jewelry Store observed a customer remove a ring from a display case and put it in his pocket.In most states,Sparkle

A) can reasonably detain the customer for suspicion of shoplifting.
B) cannot detain the customer but can alert the police.
C) cannot detain the customer but once the customer leaves the store, the salesclerk can make a citizen's arrest.
D) cannot detain the customer but can sue for conversion.