Regarding Unsolicited Merchandise Received from a Seller,what Have Most States

Regarding unsolicited merchandise received from a seller,what have most states done?

A) Most states have passed laws providing that unsolicited merchandise does not have to be returned and the recipient may keep it as a gift,with no contract being formed.
B) Most states have passed laws providing that unsolicited merchandise must be returned to the seller within 60 days.
C) Most states have passed laws providing that unsolicited merchandise must be returned to the seller within 30 days.
D) Most states have passed laws providing that unsolicited merchandise must be returned to the seller within 10 days.
E) Most states have passed laws providing that unsolicited merchandise must be returned to the seller within 7 days.