Answer: Option B
Explanation:
There is no acceptance and no contract in this case. Mina Loy's written offer letter states clearly that the acceptance has to be made through first class mail. The terms of the offer were not fulfilled by Carl Van Vechten as he did not perform the acceptance as per the condition mentioned in the offer.
As there is no valid contract the parties to the contract that is Mina Loy and Carl Vechten are not obliged to perform their obligations as promised.