Answer:
honestly i would say 5 seconds
Explanation:
7 and 6 seconds seems to be a little to long and 4 seconds seems to be short. also when holding your breath its seconds that you can hold it not minutes ( unless you somehow managed that :/ )
Answer: Do you still need an answer?
Answer: what is it
Hokkaido, Honshu, Shikoku, Kyushu.