Given below are two statements, one labelled as Assertion A and the other labelled as Reason R.Assertion A: The central problem in the Arab-Israeli dispute is complex.Reason R: It is on account of Israel's loosely defined borders and its occupied territories.Codes:

• A. Both A and R are true, but R is not the correct explanation of A.
• B. Both A and R are true and R is the correct explanation of A.
• C. A is true but, R is false.
• D. A is false but, R is true.