Sodium lauryl sulphate (SLS) is a surface active agent, which is adsorbed on water surface. The number of molecules of SLS that can be adsorbed on the surface of a spherical water droplet of diameter 3.5 mm is (effective area of one molecule of SLS is $$4.18\ \text{nm}^2$$)

A

$$9.20 \times 10^{12}$$

B

$$9.20 \times 10^{18}$$

C

$$1.15 \times 10^{12}$$

D

$$3.68 \times 10^{13}$$