Answer:
c. The car travels different distances per unit of time because the portion shows a nonlinear, increasing function.
Explanation:
We are given the graph of a function of the distance in function of the time.
We want to study the graph during the part of the graph labeled K, which is non-linear, meaning that the accelaration is not constant. This means that the car travels different distances per unit of time, and the correct answer is:
c. The car travels different distances per unit of time because the portion shows a nonlinear, increasing function.