42.12% (w/v) solution of NaCl causes precipitation of a certain sol in 10 hours. The coagulating value of NaCl for the sol is
[Given: Molar mass: Na = 23.0 g mol$$^{-1}$$; Cl = 35.5 g mol$$^{-1}$$]

A

36 mmol L$$^{-1}$$

B

36 mol L$$^{-1}$$

C

1440 mol L$$^{-1}$$

D

1440 m mol L$$^{-1}$$