Which of the Following Statements Is TRUE

Multiple Choice

Which of the following statements is TRUE?

A) If acceptance is communicated by letter, then it occurs as soon as the letter is properly posted, provided it was reasonable to use mail in the circumstances.
B) If acceptance is communicated by fax, then it occurs as soon as the fax is transmitted.
C) If acceptance is communicated by e-mail, then it occurs as soon as the email is transmitted.
D) Both A and B
E) All of the above.