Assertion A : Paints with white lead base are not recommended for painting of iron works.Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below:

• A. Both A and R is true and, R is the correct explanation of A
• B. Both A and R is 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