Q. Assertion A : Pure lime takes a long time to develop adequate strength.
Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below:

• (A) Both A and R is true and R is correct explanation of A
• (B) Both A and R is true and R is not a correct explanation of A
• (C) A is true but R is false
• (D) A is false but R is true