Assertion A : For identical strength, a composite cement-lime mortar is preferred over cement mortar. Reason R : Composite cement-lime mortar has higher drying shrinkage than cement mortar_____________?

Select your answer based on the codes given below Codes?
A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is not a correct explanation of A.
C. A is true but R is false.
D. A is false but R is true