Assertion (A): When performance specifications are given in term of transient response characteristics, root locus method is a suitable method. Reason (R): When performance specifications in terms of state variables are given, modern control methods can be used.

• A. Both A and R are correct and R is correct explanation of A
• B. Both A and R are correct but R is not correct explanation of A
• C. A is correct but R is wrong
• D. R is correct but A is wrong