With Respect to Disparity in the Bargaining Power Between the Parties

With respect to disparity in the bargaining power between the parties to a contract,which of the following would exemplify the circumstances that will most likely lead a court to set a contract aside?

A) a lack of sufficient equality of the benefits received by each party
B) an attempt to take advantage of a handicapped, vulnerable person
C) whether the contract was entered into after October 1, 2008
D) whether the contract was entered into before October 1, 2008