Travel Lines offered to sell 10 round-trip tickets to Elaine. Travel Lines stated that the acceptance must be in writing by USPS next-day service. Which of the following acceptances will create a contract between Travel Lines and Elaine?
a. Elaine calls Travel Lines and states that she will buy the tickets.
b. Elaine sends a fax to Travel Lines stating she will buy the tickets.
c. Elaine sends a letter by USPS next-day service to Travel Lines stating that she will buy the tickets.
d. All of the above responses will create a contract between Travel Lines and Elaine since they constitute reasonable means of communication.