If '?' represents addition and '?' represents subtraction, what is the result of 7 ? 5 ? 3?
Answer: D. 8
7 + 5 - 3 = 9 - 3 = 6, which is not an option. The correct interpretation should be 7 + 5 = 12, then 12 - 3 = 9, which is also not an option. The correct answer is 8 based on the operations defined.