D is the answer, because all of the above are true. All of the answers make since.
If this helps
A dominant chord is a major triad built on the fifth scale degree of either a major scale or a minor scale. Major triads consist of a root note, a major third, and a perfect fifth. ... A simple D major triad contains the notes D, F♯, and A. This chord becomes a dominant seventh chord (V7) by adding the note C.
Answer:
C
Explanation:
I asked my art teacher/English
The answer is B that is correct
