单选题 Finding a job can be ______ and disappointing，and therefore it is important that you are prepared.

【正确答案】 B

【答案解析】[解析] exploit“剥夺，开采”；frustrate“使沮丧”；profit“获利”；mislead“误导”。由并列连词and后面的disappointing可知前面的也应选一个与之贴近的消极意义的词，故答案为B。