Sullivan signs an employment agreement withKeller Construction.Two days after signing, Sullivan receives a job offer fromBig Sky Constructionfor considerably more money.He explains the situation and asks to be released from theKellercontract.Kelleragrees orally, provided Sulivan will help them find a replacement.Is this release valid?

(A)No, becausethe release agreementis not supported by consideration.(B)No, because a release agreementmust be in writing to be valid.(C)Yes,the release agreementmeets the requirements for a valid release.(D)We cannot say without knowing whether Sullivan has yet done any work forKeller.