The Principal Hires an Agent to Manage Her Boutique

The principal hires an agent to manage her boutique.After several months,the principal fires this agent.To avoid liability for any further acts done by this agent,the principal must give:

A) direct notice to all persons who knew of the agency
B) direct notice to those who dealt with the agent,and no notice to anyone else
C) direct notice to those who dealt with the agent,but only constructive notice to those who knew of the agency but did not deal with the agent
D) constructive notice to all persons who knew of the agency,and no notice to anyone else
E) No notice of the termination is required in order to avoid liability.