The graph shows the acceleration a of a car as a function of time t. Assuming the car starts from rest, the total displacement of the car from time t=0s to time t=6s is most nearly
A. 6m
B. 9m
C. 18m
D. 45m
![The graph shows the acceleration a of a car as a function of time t Assuming the car starts from rest the total displacement of the car from time t0s to time t6 class=](https://us-static.z-dn.net/files/d82/bf18178f9c9ca2f5a60f4d7f3e6d5603.png)