Given below are two statements, one labelled as Assertion A and the other labelled as Reason R.Assertion A: A pre-emptive attack is military action that is designed to forestall or prevent likely future aggression.Reason R: It is therefore a form of self-defense in anticipation; it involves 'getting your retaliation in first'.Codes:

• 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 the correct explanation of A.
• C. A is true, but R is false.
• D. A is false, but R is true.