A car goes around uniform circular track of radius R at a uniform speed v once in every T seconds. The magnitude of the centripetal acceleration is `a_(c)`. If the car now goes uniformly around a larger circular track of radius 2R and experiences a centripetal acceleration of magnitude `8a_(c)`, then its time period is
A. 2T
B. 3T
C. T/2
D. 3/2 T
