Where an Agent Has Taken an Unauthorized Action

Where an agent has taken an unauthorized action:

A) the principal may not ratify the action even if it would be beneficial to the principal to do so.
B) the principal is free to ratify the beneficial part of the unauthorized action and deny any burdensome part of it.
C) any ratification by the principal must be for the entire action,not merely the beneficial part.
D) the principal may ratify the action only if the principal is a corporation.