IT is D. I will wash the dishes, but Mary will dry them. It has a pause before 'but'. A. Could also be right but it has no Punctuation. B. Would have semicolon. C. is incorrect.
"donned" means to put on, so she put on her shoes, and the context clue Simone carefully dressed, therefore, donned or put on, is the only one that could fit, it the context. Hope this helps