To identify which of the given chords is a minor chord, let's look for the pattern of a minor chord. A minor chord is made up of a root note, a minor third, and a perfect fifth.
- A C-E-G: This chord consists of A, C, and E. This is an A minor chord (A - C - E).
- B E-G-B: This chord consists of E, G, and B. This is an E minor chord (E - G - B).
- C F-A-C: This chord consists of F, A, and C. This is an F major chord (F - A - C).
- D G-B-D: This chord consists of G, B, and D. This is a G major chord (G - B - D).
From the options listed, A C-E-G is the correct choice as it is an A minor chord, while B E-G-B represents an E minor chord. So, George has two options for minor chords in C major: A minor (A-C-E) or E minor (E-G-B).