The correct answer is A. Because he was such a marginal player but was on several Super Bowl-winning teams, it's possible that Harper let success go to his head.
Explanation
A synthesis of claims and evidence is an abbreviated description of an argument and its reasons, which contains the most important aspects of a position. Therefore, the correct answer is A. Because he was such a marginal player but was on several Super Bowl-winning teams, it's possible that Harper let success go to his head. Because it expresses a fact "it's possible that Harper let success go to his head of him" that is argued through evidence synthesized in the sentence "Because he was such a marginal player but was on several Super Bowl-winning teams". So the correct answer is A. Because he was such a marginal player but was on several Super Bowl-winning teams, it's possible that Harper let success go to his head.
