单选题 If you own stock, you must allow for the possibility that it will lose value sometimes.
【正确答案】 B
【答案解析】allow for：考虑到，为……留有余地；throw doubt to：使人们怀疑；take into account：把……考虑在内；go ahead with：继续；go in for：由于感兴趣而从事。