Given below are two statements, one labelled as Assertion A and the other labelled as Reason R.Assertion A: Copper tools simultaneously found along with stone tools during the chalcolithic period.Reason R: Copper was abundantly available during the chalcolithic period.In the context of the above statements, which one of the following is correct?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.