Which of the Following Statements About the Duty of an Agent

Which of the following statements about the duty of an agent to act in person (personally) is not true?

A) Agents may delegate if this is the normal practice in their trade or profession.
B) Agents may delegate tasks which require their special skill or competence if they believe the principal will suffer no disadvantage.
C) Agents must carry out their lawful instructions personally unless the principal agrees that the tasks can be delegated.
D) Agents may delegate simple clerical tasks.