Desktop Company offers to sell eRetail, Inc., 1,000 computers for a $500,000, states that the offer will be open for six days, and asks for a response by fax. On the fourth day, eRetail sends an acceptance to Desktop via the mail, which is received on the sixth day. In this deal
a. a contract is formed.
b. no contract is formed, because Desktop asked for a response by fax.
c. no contract is formed, because Desktop received the acceptance late.
d. no contract is formed, because eRetail sent the acceptance late.