Chapter 11.1, Problem 11.CQ2P

Two cars A and B race each other down a straight road. The position of each car as a function of time is shown. Which of the following statements are true? (More than one answer can be correct.)
a. At time t₂, both cars have traveled the same distance.
b. At time t₁, both cars have the same speed.
c. Both cars have the same speed at some time $t<t_1$ .
d. Both cars have the same acceleration at some time $t<t_1$ .
e. Both cars have the same acceleration at some time $t_1<t<t_2$ .