On April 2, Brutus sent an offer to Caesar, to sell Caesar his personal chariot for $2,500. The offer stated that Caesar had 10 days in which to accept. Caesar received the offer on April 4. Which of the following statement(s) are true?

Select one or more:

a.

If Caesar sent a letter of acceptance on April 15, it would form a contract when mailed.

b.

If Caesar sent a letter of rejection on April 8, it would not be effective until received.

c.

If Caesar sent a letter of rejection on April 8, which was received on April 10, and then sent a letter of acceptance on April 9, which was received on April 11, there would be a contract on April 9.

d.

This is an example of a battle of the forms.