With Respect to the Formation of Agency by Estoppel,which of the Following

With respect to the formation of agency by estoppel,which of the following statements is true?

A) The issue of apparent authority arises only if a person acts as an agent when he has express or implied authority.
B) When a third party suspects that the agent she deals with has no authority, there is no obligation on her to question the agent's alleged authority.
C) When a party represents, by words or conduct, that someone is his agent, that party can later deny liability on a contract made for him by that agent on the basis that no express agency agreement existed.
D) When a party terminates an express agency agreement with her agent and notifies third parties with whom that agent normally dealt, that party will be liable on a contract made for her by that "fired" agent.
E) If the principal tells an agent specifically not to sell something and the agent, in disobedience of those instructions, sells it anyway, the principal may be bound by the contract because of estoppel.