Assertion : **** test is used to estimate the level of blood alcohol by analysing the breath of persons drinking alcohol.
Reason : A *** person usually feels tense and less talkative.
(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 correct explanation of A
(c) A is true but R is false
(d) A and R are false