Kent, without authority, contracted to buy computer equipment from Fox Corp. for Ace Corp. Kent told Fox that Kent was acting on Ace's behalf. For Ace to ratify the contract with Fox,
　　a.Ace must notify Fox that Ace intends to ratify the contract.
　　b.Ace must know all material facts relating to the contract at the time it is ratified.
　　c.Kent must have acted reasonably and in Ace's best interest.
　　d.Kent must be a general agent of Ace.
　　Answer：B
　　Choice "B" is correct. In order to ratify the contract (ratification of an entire unauthorized act) between Kent and Fox, Ace (principal) must have knowledge of all material facts of the transaction (and want to ratify it) at the time of the ratification.
　　Choice "d" is incorrect. Ratification of an unauthorized act does not require that the party acting be a general agent.
　　Choice "a" is incorrect. The principal (Ace) need not give notice of the intent to ratify because the third party already presumed the principal was bound through the agent's act.
　　Choice "c" is incorrect. There is no requirement that the agent must have acted reasonably and in the principal's best interest; the principal is given the option to ratify even if the agent acted recklessly and in his own interest.