33. It is the extent of the agent's duty to represent the principal. A. authority C. implied authority B. express authority D. instructions 34. The scope of an agent's authority as far as third persons are concerned A. to protect the interests of the third persons and the principal B. to protect the interests of the third persons and the agent C. to protect the interests of the third persons D. to protect the interests of the third persons, including that of the principal and agent. 35. Which one does not belong among the obligations of the principal ? A. to pay the agent the compensation required B. to indemnify the agent for damages he incur without fault or negligence on his part C. to comply with his obligations when the agent performed within the scope of his authority D. to reimburse the agent on losses he incur with his fault or laxness 36. The principal is solidarily liable with the agent even when the latter exceeded his authority A. when there is express authority given to the agent B. when there is specific instruction to the agent C. when there is implied authority given to the agent D. when the principal allowed the agent to act as though he had full powers. 37. Going back to item number 36 , what principle is involved based on such rule? A. principle of fairness C. principle of estoppel B. principle of trust and confidence D. principle of joint responsibility