Why are the drivers of the Dover mail coach hesitant to stop for Jerry Cruncher’s message?

Why are the drivers of the Dover mail coach hesitant to stop for Jerry Cruncher’s message?

A.) They fear that stopping will put them behind schedule for delivering the mail in a timely fashion.

B.) They have been charged with the safety of Jarvis Lorry, one of the coach’s passengers.

C.) Jerry Cruncher’s troublesome reputation precedes him.

D.) They fear that he is a highwayman attempting to rob the passengers.