In Exchange for Miles's Promise to Pay $10 000 to the Society

In exchange for Miles's promise to pay $10 000 to the Society for Prevention of Cruelty to Animals, Fran promised to give up eating meat for one year.Which of the following statements is TRUE?

A) Fran's promise is gratuitous because Miles does not receive anything of value from her.
B) Fran has not given consideration because she has only suffered a detriment.
C) Because neither party will receive a direct benefit, a contract was created only if the parties' agreement was placed under seal.
D) The facts demonstrate a mutual exchange of value.
E) The facts demonstrate the doctrine of promissory estoppel.