Which key has no sharps or flats?

Which key has no sharps or flats?

• A. F Major
• B. A Minor
• C. C Major
• D. G Major

Answer: (C)

Key signatures show which notes get altered by sharps or flats. A key with no sharps or flats means the scale uses only natural notes. The major scale starting on C uses only white keys and contains no accidentals, so its key signature has nothing to change. That makes C major the correct choice here. In contrast, other major keys require sharps or flats (for example, one sharp in G major, one flat in F major). (Note: A minor also has no sharps or flats in its natural form, but the prompt is typically interpreted as asking for a major key.)

Key signatures show which notes get altered by sharps or flats. A key with no sharps or flats means the scale uses only natural notes. The major scale starting on C uses only white keys and contains no accidentals, so its key signature has nothing to change. That makes C major the correct choice here. In contrast, other major keys require sharps or flats (for example, one sharp in G major, one flat in F major). (Note: A minor also has no sharps or flats in its natural form, but the prompt is typically interpreted as asking for a major key.)