The correct answer to this question is option A) 7.80 years.
Answer:
A diminished interval has one less semitone than a perfect interval. Since C to G is a perfect fifth (7 half steps), C to Gb would be a diminished fifth (6 half steps). Since C to G is a perfect fifth (7 semitones), C to Gb would be a diminished fifth (6 semitones).
A: True im a big fan of his work