QUESTION 3 (1 mark) The following are instantaneous means of communicating methods of acceptance EXCEPT: A. Face to face B. Telephone conversations C. Internet D. Letters QUESTION 4 (1 mark) A man saw a boy is drawning in the lake and asking for help. He then jumped to the lake and able to rescue the boy and bring him to a safe place. He met the parent of the boy and asking for a sum of money as a consideration for his act of saving their son's life. Based on the facts above, decide the best principles of consideration suit to that paticluar situation: A. Performance of existing contractual duty owed to the promisor B. Moral obligation is not a valid consideration C. Performance of existing public duty D. Performance of existing duty imposed by third party