Which note in a major chord is lowered to create a minor chord?

A. third
B. fifth
C. root
D. octave

A. third

To determine which note in a major chord is lowered to create a minor chord, we need to understand how a major chord is constructed. A major chord consists of three notes: the root note, the third note, and the fifth note.

In a major chord, the third note is a major third above the root note. To create a minor chord, we need to lower the third note by a half step, which means we lower it by one piano key.

So, the correct answer is A. third