A train travels from New York to Chicago, a distance of approximately 840 miles , at an average rate of 60 miles per hour and arrives in chicago at 6.00 in the evening , chicago time. At what hour in the morning . New York City time, did the train depart for chicago?
A
4:00
B
5:00
C
6:00
D
7:00
Correct Answer: 4:00