21 ) . A PROMISE WHICH IS UNSUPPORTED BY CONSIDERATION IS NONETHELESS ENFORCEABLE IF ( A ) THE PROMISOR CLEARLY INTENDED TO BE BOUND BY IT WHEN HE MADE IT ( B ) THE DOCTRINE OF PROMISSORY ESTOPPEL IS APPLICABLE TO IT ( C ) THE PROMISE IS IN WRITING ( D ) THE PROMISEE RECEIVED A BENEFIT ( E ) NONE OF THE ABOVE