6.Jack mails an offer to Joan that states, "I offer to sell you my car for $2000. If I don't hear from you in 10 days, I will assume you are willing to buy the car for the stated price." Jack hears nothing by the deadline and assumes he has a deal. Both Jack and Joan are individuals, and are not merchants.What is the result?

a. Jack has a deal. His offer was intended and contains definite terms.

b. Jack has a deal. Joan should have responded saying she is not interested in the car if she didn't want to be bound to the offer.

c. Joan is not bound. Generally silence or inaction is not acceptance.

d. Joan is not bound. Ten days is not a reasonable amount of time to consider the offer and accept by mail.