What Are Two Exceptions to the Rule Requiring Consideration

Multiple Choice

What are two exceptions to the rule requiring consideration?

A) A contract under seal and a contract involving a liquidated debt.
B) A contract under seal and promissory estoppel.
C) A bilateral contract and a unilateral contract.
D) Promissory estoppel and an illusory contract.
E) A contract under seal and an illusory contract.