In which of the following circumstances will an agent's apparent authority arise? 

A

When the principal tells the agent orally what the limit of their authority is 

B

 What a third party determines the agent's authority is from what is usual in the circumstances 

C

 When, without the principal being aware, an agent tells a third party what their authority is 

D

 Where a principal has represented a person to third parties as being their agent, despite not actually appointing the person as such