The molar conductivity of a $$0.5 mol /dm^3$$ solution of $$AgNO_3$$, with electrolytic conductivity of $$5.76 \times 10^{-3} S cm^{-1}$$ at 298 K is

A

11.52 $$S cm^2 /mol$$

B

0.086 $$S cm^2 /mol$$

C

28.8 $$S cm^2 /mol$$

D

2.88 $$S cm^2 /mol$$