【正确答案】 C

【答案解析】The information following the semicolon provides a clue to which word best fits in the blank. Because Amanda is normally very polished and chic, but today her appearance would suggest otherwise, look for a word that has a meaning opposite to "polished" or "chic." The word unkempt means "disorderly" and is often used to describe hair, so it is the best choice for the blank.