Which of the following exists when a person refuses to perform according to a contract unless the other person either pays that person a higher price than was specified in the original agreement or enters into another contract with the one making the threat to pay a higher price than was agreed to in the original contract?

Fraudulent duress

Negligent duress, because everyone is statutorily mandated to act as a reasonable person would act in the same or similar circumstance

Conditional duress

Economic duress

Undue influence involving a fiduciary relationship, because contracting parties have an implied duty to act in good faith $($and fair dealing$)$ towards one another