Train A is traveling north at a steady speed of 50 miles per hour. After 2 hours, it is 140 miles north of Hillsboro. Train B is traveling north on a parallel track. Its distance north of Hillsboro is presented by the graph.

Where were the two trains in relation to each other when the began traveling?

A Train B was 30 miles north of train A

B. Train A was 40 miles north of train B

c. Train B was 10 miles north of train A

D. Train A was 10 miles north of train B