Please help I will mark you brainiest and give you 20 points please it´s urgent!!❤️

The graph shows the number of miles traveled by a train over a 5 hour trip.
How fast is the train traveling?
A. - 30 miles per hour

B. - 32.5 miles per hour

C. - 35 miles per hour

D. - 40 miles per hour

Please help I will mark you brainiest and give you 20 points please its urgent The graph shows the number of miles traveled by a train over a 5 hour trip How fa class=