人生的起起落落的段子:英文阅读，C为什么错？

In job-hunting, personal appearance is very important.After all, you’re selling a product----yourself--- to an employer.When going to a job interview,always brush your hair tidilyer,polish your shoes and above all,dress yourself properly.It will give you competitive advantage and a positive first impression.The above idea was also suggested in a best-seller for jobseekers named Dress For Success.
First impressions are ______ones.In other words,if you’re viewed positively within the critical first four minutes,the person you’ve met will probably feel everything you do is positive.Leave the interviewer a bad impression,and often he will guess you have a lot of other unsatisfactory characters.What’s worse,he or she may not take time to give you a second chance.Most employers belive that those who look as if they care about themselves will care more about their jobs.
A.remaining B.lasting C.useful D.serious