What do you call a contract that can be legally enforced at the choice of one or more parties involved, but not at the discretion of the other parties?

Explanation

A void contract is one that has no legal effect from the beginning, whereas a valid contract is enforceable by law on all parties. A voidable contract is unique because it is legally enforceable at the option of one or more parties, but not necessarily by the other parties. Therefore, the correct answer is a voidable contract.