Answer: Weary
Explanation:
Weary means tired and confused.
From what I remember, its personification, which is when you give inanimate or non-living objects (the sun) human characteristics (using the word peeked)
I think it would be the 1st one
The technique that this sentence best illustrates is understatement.
Understatement means that you are not showing the full 'strength' of something, but it is rather understated - so here, the coach only said that 'he was glad' even though his team won the Super Bowl, which is a huge deal. So his emotions should have been way stronger.