Meng, a vice-president at Boston University, resigned his position to protest what he regarded as the unethical and unprofessional behavior of the University's president, John Silber, in terminating a recently renewed contract with Linkage Corporation. Silber orally promised Meng, as a serverance package when he resigned, fourteen months of salary and benefits, and free tuition for two of his children if either should attend the university. Was the oral promise enforceable? explain.