Sarah is 16 years old. She left home at age 15: her parents no longer support her. Sarah entered into a contract with Best Groceries for the purchase of $100 of groceries on credit. The groceries consisted of basic, necessary items. However, their reasonable value is ony $80. If Sarah discovers that she has been overcharged and refuses to pay, Best is entitled to collect O A. nothing $100. 0 D. $90