Final answer:
A partial payment on a liquidated debt does not forgive the remaining debt unless there is a specific agreement to that effect. The correct option is 3.
Step-by-step explanation:
The question pertains to the effect of a partial payment on a liquidated debt, which is a common topic in the field of contract law. Accepting a partial payment on a liquidated debt does not automatically forgive the rest of the debt. The term 'liquidated debt' refers to a debt where the amount owed is fixed and undisputed.
The assertion that liquidated debt is a product of fraud is incorrect; liquidated debt is simply a debt with a specific, agreed-upon amount. Therefore, unless there is an agreement to the contrary, the debt remains outstanding even after a partial payment is accepted.