Nina Sent a Letter to Adrian That Stated She Wanted

Multiple Choice

Nina sent a letter to Adrian that stated she wanted to hire him to decorate the interiors of her house. She wrote that he must accept the offer by mail. Adrian received the letter and telephoned Nina to say that he accepted the offer. Which of the following statements is true in this case?

A) There is a valid acceptance and a binding contract because the telephone call was an authorized means of acceptance.
B) There is a valid acceptance and a binding contract because the telephone call was a reasonable means of acceptance.
C) There is a valid acceptance and a binding contract because the telephone call was a faster means of acceptance than the mail.
D) There is no acceptance and no contract in this situation as it is clearly mentioned by the offeror that the acceptance must be by mail.