Work done in increasing the size of a soap bubble from a radius of $$3 \, \text{cm}$$ to $$5 \, \text{cm}$$ is nearly (Surface tension of soap solution $$= 0.03 \, \text{Nm}^{-1}$$):

A

$$0.2\pi \, \text{mJ}$$

B

$$2\pi \, \text{mJ}$$

C

$$0.4\pi \, \text{mJ}$$

D

$$4\pi \, \text{mJ}$$