Be ready for the job interview, _____ you may miss the good opportunity.

A．and

B．then

C．or

D．so

A: I’ve got a fever and a really bad headache.
B: ().

A. Why are you so careless about yourself

B. This kind of thing happens to everyone.

C. You should take good care of yourself.

D. Oh, that’s too bad. Why don’t you take some aspirin