Two cars of masses `m_(1)` and `m_(2)` are moving in circles of raddii `r_(1)` and `r_(2)` respectively. Their speeds are such that they make complete circle in the same time t The ratio of their centripetal acceleration is .
A. `1:1`
B. `m_(1) r_(1):m_(2) r_(2)`
C. `m_(1):m_(2)`
D. `r_(1):r_(2)`