Assertion (A): The electrophile in nitration of Benzene is  $N{O}_2^{+}$
Reason (R): In nitration mixture, HNO₃ acts as oxidizing agent.
 

Both A & R are true, R is correct explanation for A.

A is true, R is false

Both A and  R are false

Both A & R are true, but R is not correct explanation of A.