e. Voidable 33. What is a key difference between Bilateral and unilateral contracts? a. Only a bilateral contract needs consideration b. Only a unilateral contract needs consideration c. The adequacy of consideration d. The type of consideration c. the application of Promissory Estoppel 34. What must you prove in a successful promissory estoppel case? a. The mutual exchange of promises b. The exchange of adequate consideration c. Intent to be bound by the contract d. The existence of consideration e. Detrimental reliance on a promise 35. When will a court consider adequacy of consideration? a. When undue influence or fraud are present b. Always c. When there is past consideration d. When there is nominal consideration e. Never