Question

3 tries left
for a contract to be considered legally enforceable, parties who
must make the contract.
are unrelated to each other
are familiar with each other
have permission from their boss
are legally able to contract

Explanation:

For a contract to be legally enforceable, one of the key requirements is that the parties involved must have the legal capacity to enter into a contract. This means they must be of legal age, of sound mind, and not under any legal disability that would prevent them from contracting. The other options (unrelated, familiar, boss permission) are not fundamental legal requirements for contract enforceability.

Answer:

are legally able to contract