Assertion (A): The possibility of piping failure in earth dams is more if black cotton soil is the foundation material.
Reason (R): The highly expansive black cotton soils are the most common soils wherever basalt rock is present.
Directions: The following items consists of two statements; one labelled as 'Assertion (A)' and the other as 'Reason (R)'. You are to examine these two statements carefully and select the answers to these items using the codes given below:
Codes: