A car is accelerated on a leveled road and attains a speed of 4 times its initial speed. In this process, the kinetic energy of the car:
A. Does not change
B. Becomes 4 times that of initial kinetic energy
C. Becomes 8 times that of initial kinetic energy
D. Becomes 16 times that of initial kinetic energy
In the kinetic energy of the object is proportional to the square of its velocity.