A position-time graph shows a person walking 12 km in 10 minutes. Then staying at a location for 20minutes. Then, walking back to 0 position in 15 minutes.
Which statement correctly compares the person's motion during the first 10 minutes to the person's motion during the last 10 minutes?
A. Acceleration increases during the first 10 minutes and decreases during the last 10 minutes.
B. The person is going faster and in a different direction during the first 10 minutes than in the last 10 minutes.
C. The person is speeding up during the first 10 minutes and slowing down during the last 10 minutes.
D. The person is going slower and in a different direction during the first 10 minutes than in the last 10 minutes.