As an entry$-$level employee in a large financial services firm, you notice that some of the other new employees are arriving to work late and leaving early. The BEST course of action would be to

A$.$ discuss the issue with your first$-$line manager

B$.$ discuss the issue with top management

C$.$ discuss the issue with an upper$-$level manager

D$.$ discuss the issue with your coworkers

E$.$ mind your own business