An appointed agency means an agency performed by an agent in accordance with the designation of a people's court or a designated agency. Which of the following are designated agents? ['Enterprise A grants Buyer B to sign a TV sales contract with Company C.', 'Partners A. B, and C grant agency rights to each other, and each partner has the right to sign or perform contracts on behalf of other partners.', 'A filed an infringement lawsuit against B for his 10-year-old son.', "The villagers' committee in the place where the minor A resides appoints B as the agent of the civil tort of A."]