Broker Kenneth arrives to present a purchase offer to Dorita, an invalid, and finds her son and his wife also present. In the presence of Broker Kenneth, both individuals persistently urge Dorita to accept the offer, even though it is much lower than the price she has been asking for her home. If Dorita accepts the offer, she may later claim that

a$)$ Kenneth should not have brought her such a low offer for her property

b$)$ she was under duress from her son and daughter$-$in$-$law, and therefore, the contract is voidable

c$)$ Kenneth defrauded her by allowing her son and his wife to see the purchase offer he brought to her

d$)$ her consumer protection rights have been usurped by her son and daughter$-$in$-$law