The Serenity and the Mystic are sail boats. The Serenity and the Mystic start at the same point and travel away from each other in opposite directions. The Serenity travels at 15 mph and the Mystic travels at 22 mph. How far apart will they be in 2 hours?
A.
41 miles
B.
84 miles
C.
74 miles
D.
52 miles