Fay,age 17,ordered a Pair of Skis on the Installment Plan

Multiple Choice

Fay,age 17,ordered a pair of skis on the installment plan.She paid $20 every month until she turned 18,the age of majority.The next day,she sold them to Sharon and disaffirmed the contract.Fay is:

A) still liable since she had to disaffirm before her 18th birthday.
B) still liable because selling the skis amounts to a ratification.
C) not liable because she disaffirmed the contract.
D) not liable because skis are not necessaries.