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:

Masonry is the craft of building a structure with brick, stone, or similar material, which are often laid in and bound together by mortar; the term masonry can also refer to the building units (stone, brick, etc.) themselves.