The wierd arguent structure got me :/

Although i got it right, i got triped up on the implied premise. They never explicitly concluded she was tired so it felt funky.

I am gonna be honest got this on right because of 2 things. First I eliminated the answer choices and picked A. When I arrived at a for a second time I was not sure but then I re-read the stimulus noticed the word as well. My mind thought that maybe beauty was being pegged to the best art work. So if I negated A then the argument would not make sense. Sorry if my explanation is convoluted...

C got me..