pls help! will give brainlist!

The graph below shows the relationship between the times and distances Danielle and Dorian ran along the same trail. Danielle ran 1 mile every 12 minutes. Dorian started running once Danielle had completed 1 mile, and then he ran 1 mile every six minutes.

How far had Danielle run when Dorian caught up to her?

A. 2 miles
B. 24 miles
C. 1 mile
D. 12 miles