单项选择题

By "waiting more than 72 hours to inform a candidate how he or she did in an interview is an eternity" in Lines 2 - 3 of Paragraph 3, the author means ______.

A.it' s boring for a candidate to wait more than 72 hours to know the result of an interview
B.it's too long to keep a candidate waiting over 72 hours to know the result of the interview
C.it's necessary for a candidate to wait 72 more hours because it takes time to make decisions
D.it's outdated to inform the candidates the result of the interview after more than 72 hours