I believe this is D! Hope it helps you in any way.
The answer to the statement is true
The choices are:
A. ) standardization.
B) predictive validity.
C) reliability.
<span>D) content validity.
The answer is A. standardization. He was comparing his score to other average test-takers. From there he could reflect if the test is a standard exam for Math. He most probably would see average test takers get approximately at least his score. </span>
Answer: G major
Explanation: I think it is the key of G major, because G major has F sharp.