Which set of intervals is called perfect?

(1 point)
Responses

2nd, 3rd, 6th
2nd, 3rd, 6th

4th, 5th, octave
4th, 5th, octave

3rd, 6th, 7th
3rd, 6th, 7th

2nd, 5th, 7th

1 answer

The set of intervals that is called "perfect" consists of the 4th, 5th, and octave. Therefore, the correct response is:

4th, 5th, octave