Bridget and Molly entered into a contract pursuant to which Bridget was to render kitchen installation services for a total price of $10,000, payment due May 15. After the services had been performed, a good faith dispute arose between Bridget and Molly over whether all of the services had been properly performed. Bridget claimed that the full amount was due, but Molly argued that only $5,000 worth of services had been properly performed. After several months of argument, Molly sent a check for $7,500 to Bridget on which Molly had written "payment in full for kitchen installation services."

(a) Bridget endorsed the check without making any further notations on it, deposited the check and sued Molly for the remaining $2,500 she claims is due. Judgment for whom? Explain.