单选题 "...people who die wondering, What if?" ( L3, Para. 3 ) refers to" those______ ".

A、 who think too much of the dark side of life
B、 who regret giving up their career halfway
C、 who think a lot without making a decision
D、 who are full of imagination even upon death

【正确答案】 B

【答案解析】这是一道细节题，在这句话之后那句话给出了暗示“I would keep putting my dream to the test， even though it meant living with uncertainty and fear of failure”即我坚持在现实中实现我的梦想，尽管它有不确定的因素。由此可以判断出那些人是后悔自己半途而废的。故应选[B]。