Jane Appointed Tom as Her Agent and Gave Him Express

Multiple Choice

Jane appointed Tom as her agent and gave him express authority to retain subagents to do some or all of Tom's work.Tom retained Mike as a subagent.Based on these facts,which of the following statements is true?

A) Only Jane is bound to a third party by Mike's actions.
B) Neither Jane nor Tom is bound to a third party by Mike's actions as subagent.
C) Between Jane and Tom,it is Tom who is ultimately liable for Mike's actions as subagent.
D) Mike is solely bound to third parties for his actions as subagent.