While Looking for Apartments,Brittany Finds One That She Likes

Multiple Choice

While looking for apartments,Brittany finds one that she likes.The building manager agrees to an option contract in which he will hold the apartment for Brittany for four days in return for $100.At the end of the fourth day,Brittany finds another apartment that she likes better and signs a lease with its building manager.Because Brittany's contract with the original building manager is an option contract,the building manager is under:

A) no legal obligation to return more than $50 to Brittany.
B) legal obligation to return Brittany's $100 payment.
C) legal obligation to return one-fourth of Brittany's $100 payment.
D) no legal obligation to return Brittany's $100 payment.