The answer is C, I believe.
Answer: B) Diatonic
Explanation: The major scale is one of the most commonly used musical scales, especially in Western music. It is one of the diatonic scales.
Edit: Armor for Fish? Srsly?
Answer:
Baby when I clock up can't wait
Promise this time won't go to waste
For all we put up now
I won't let your love down
I know we're not too far away