Assertion (A) : Soaps do not form lather with water containing salts of calcium and magnesium.
Reason ( R) : Calcium and magnesium salts of long-chain fatty acids are insoluble in water.

Options

A. Both A and R are individually true and R is the correct explanation of A
B. Both A and R are individually true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true