Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Grammar (Vyakarana) should be studied for the purpose of protecting the Vedas.
Reason (R): Because grammar is necessary for those who wish to correctly understand the modifications (Uha) in Vedic mantras based on gender and case endings.
In the light of the above statements, choose the correct answer from the options given below: