I believe the answer is: Brian Epstein
Brian Epstein was the first one who discovered the Beatles during their lunchtime performance at The Cavern Club. At that time, almost all label company in England refused to sign the Beatles. So epstein insisted on the professional look in order to make them look more presentable for the management and upper class audience.
Answer:
B) thinking about all the irresponsible or inept things she's ever done.
Explanation:
By thinking about her irresponsibility, you can make a balance bewteen her advantages and disadvantages in order to decide whether she is suitable for the position or not. Also, you can evaluate if your reaction was appropriate and apologize to her if necessary.