A ring is suspended from a point $$S$$ on its rim as shown in the figure. When displaced from equilibrium, it oscillates with time period of $$1$$ second. The radius of the ring is (take $$g = \pi^2$$ )

A

$$0.125$$ m

B

$$1.5$$ m

C

$$1.0$$ m

D

$$0.5$$ m