When Julie,aged 27,took Flu Medication,she Became Very Light-Headed and Confused

When Julie,aged 27,took flu medication,she became very light-headed and confused.Alice,taking advantage of the situation,persuaded Julie to sell her watch that was worth $1,000 to her for $100.Julie later realized what Alice did and decided to take legal action.Which of the following is true as per contract laws?

A) Julie cannot sue Alice since she,as an adult,voluntarily sold the watch.
B) Julie has the right to get her watch back without returning the $100.
C) Alice is allowed to keep the watch and Julie should return the $100.
D) Alice should return the watch and Julie should return the $100.