Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.Assertion (A): The People of Harappan civilization are said to have commercial links with the people of the Tigris and Euphrates basins.Reason (R): There is no archaeological evidence to substantiate the hypothesis of trade links with Mesopotamia.In the light of the above statements, choose the most appropriate answer from the options given below:

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is NOT the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct