For a particle rotating in a vertical circle with uniform speed, the maximum and minimum tension in the string are in the ratio 5 : 3. If the radius of vertical circle is 2 m, the speed of revolving body is (`g=10m//s^(2)`)
A. `sqrt(5) m//s`
B. `4sqrt(5) m//s`
C. `5m//s`
D. `10m//s`