Final answer:
A contract between Aaron and Wilson is a legal agreement that must fulfill certain elements to be valid. The contract must include an offer, acceptance, consideration, capacity, and legal purpose, and it can take various forms and have different enforcement statuses.
Step-by-step explanation:
When Aaron enters into a contract with Wilson, certain legal principles and elements must be met for the contract to be considered valid. These include offer, acceptance, consideration, capacity, and legal purpose. If any one of these elements is missing or if the contract involves something illegal, the contract may be void or voidable. Furthermore, contracts can come in various forms, such as written, oral, or implied, and they can be enforceable or unenforceable depending on the specific circumstances and the presence of any defenses to enforcement, like fraud or duress.