A door-to-door saleswoman approaches Samantha, a high school student, and tries to pressure her into purchasing a line of cosmetics. Samantha tells the saleswoman that she must first consult with her parents. The saleswoman has violated which element of a contract?

A) legality
B) agreement
C) consideration
D) capacity

The saleswoman has potentially violated the element of capacity, as Samantha, being a high school student, is likely a minor and may not have the legal capacity to enter into contracts without parental consent. Capacity refers to the legal ability of a party to enter into a contract, and minors typically have limited capacity to contract.