Answer:
D. Exhausted
Explanation:
Frink said that this was another one of those hard days and he didn't think that the road would be as tough. He is exhausted because of how much he was gone and is still going through the hard path.
It adds more 'umph' to your text. It makes it more entertaining and paints a picture in their minds. As if they can 'hear' the sounds they are reading. :)
Its a because the main idea is already stated
Your answer would be correct. Surpsingly I had the same thing