A planet is moving in an elliptical path around the sun as shown in figure. Speed of planet in positions P and Q are `V_(1)` and `V_(2)` respectively with `SP=r_(1)` and `SQ=r_(2)` , then `v_(1)//v_(2)` is equal to
A. `(r_(1))/(r_(2))`
B. `(r_(2))/(r_(1))`
C. `((r_(2))/(r_(1)))^(2)`
D. `((r_(1))/(r_(2)))^(2)`