not Dell accepted by Michael and so Michael is not obliged to pay him. 9) On June 10, A delivered to B a written offer to sell his (A's) property to B for $6000.00. The offer stated that it would be open for acceptance until 9 a.m. on June 12. On June 11, B heard that A was agreeing to sell or had sold his property to C. On the evening of June 11, B delivered an acceptance of A's offer to the place where A was staying and on the following morning personally delivered his acceptance to A, who declined the acceptance stating, "You are too late." In this situation a. A's offer must remain open until 9 a.m. on June 12th. b. B's acceptance of A's offer is a valid acceptance. c. because B did not give A the money, there is no acceptance. d. B's failure to accept A's offer immediately constitutes a rejection of A's offer. e. having heard