Answer:
D. He answers the same number of questions correctly in both rounds and the same number of questions incorrectly in both rounds.
Explanation:
In the first equation he earns 5 points and loses 3 points. The value of one question is 5 points, and the value of losing one question is 3 points. The same goes for the second equation except the fact that its 10 points and 4 points lost instead.