Read the following and then answer the questions below:September 12: A Brisbane business offers by letter to sell 500 tyres to a New Zealand company. The Brisbane company does not specify a method of acceptance and its fax number appears on its letterhead.September 19: A director of the Brisbane business asks a staff member to revoke the offer to the NZ company. Instead of telephoning, faxing or emailing this message, the employee sends the revocation in a letter.September 21: The NZ company faxes its acceptance of the offer and it is read by the Brisbane business on the same day.September 22: The NZ company receives the letter of revocation from the Brisbane business.a. Explain whether an offer has been accepted or revoked in the sequence described above.b. Explain if your answer would change if the Brisbane business had said in their letter of September 12, ‘Please accept only by post”.