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:
(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
Assertion (A}: Shear parameters ′c′ and ϕ vary with drainage conditions of shear test.
Reason (R): Shear parameter ′c′ and ϕ are dependent on water content of soil