Answer:
A. Undue influence
Explanation:
Undue influence in law of contract is when a person uses his or her position of power to take advantage over another person. It is an act of influencing the other party in a contractual relationship. There must be a relationship between both parties before undue influence can take place.
In law of contract, if a person is a victim of undue influence, the person has the right to rescind the contract provided same can be proven in a court of law.
Example of undue influence is when a person is not given parts of properties due to him or her in a family's will, whereas he or she is entitled to it.