Almost everyone has his own strengths and weaknesses. It is _______ others are weak that maybe you have a great advantage.

A．although

B．unless

C．because

D．where

某银行委托其工作人员李某购买一批计算机。李某到某商场购买时，该商场正举行有奖销售，规定购物满若干元即赠送奖券1张。李某代购计算机共得到10张奖券，未告知单位自己收藏。后商场公布中奖号码，这几张奖券中有一张中了二等奖，可得彩电1台，该彩电应当()。

某丙的权利如何维护

A．某丙因购买赃物，自己承担损失

B．可以要求某乙返还其购买项链的价款

C．某乙应当返还某丙返还其购买项链的价款，可以向小偷追偿

D．某乙如果返还某丙返还其购买项链的价款，不得向小偷追偿