Marc left his house to drive to work. as he heads down his street, his speed increases steadily until he sees the stop sign at the end of the street. then his speed decreases steadily until he comes to a complete stop at the stop sign. after waiting at the stop sign for his turn to go, marc’s speed steadily increases until he reaches the speed limit. marc then drives at this constant speed until he approaches his office. he slows down steadily and comes to a complete stop in front of his office.

which graph represents marc’s drive to work?