Which of the following is afalsestatement?

A principal owes to his or her agent a duty to act in good faith.

If an agent's contract with a third party is required to be in writing, then the agent's authority from the principal to enter into that contract generally must be in writing.

An agent's authority to act on behalf of a principal derives exclusively from the agent's express actual authority.

A principal may confer authority on an agent by manifesting words or conduct to a third party..