MULTIPLE CHOICE

Which major key has one flat in the key signature?
A B major
B C major
C F major
D G major

C F major

The major key with one flat in the key signature is C.

To determine which major key has one flat in the key signature, you need to understand the order of the flats in the key signature and their corresponding major keys.

The order of flats in the key signature is: B♭ E♭ A♭ D♭ G♭ C♭ F♭.

Each flat in the key signature represents a major key. For example, the key of F major has one flat, which is B♭.

Looking at the multiple choice options:

A) B major - B major does not have any flats in the key signature.
B) C major - C major does not have any flats in the key signature.
C) F major - F major has one flat in the key signature, which means this is the correct answer.
D) G major - G major does not have any flats in the key signature.

Therefore, the correct answer is Option C: F major.