In the following questions statement of Assertion (A) is followed by statement of Reason(R) is given. Choose the correct option out of the choices given below:-

(a)Both A and R are true and R is the correct explanation of the A.

(b)Both A and R are true and R is not the correct explanation of the A.

(c)A is true but R is False

(d)Both A and R are false.

Assertion (A) : Among halogens Fluorine is the best oxidant.

Reason(R) : Fluorine is the most electronegative element.