Exclusive costs are the costs that people incur when they want to ensure that their property is not used by others. According to the above definitions, Which of the following are exclusive costs:. ['Zhang spent on installing a fence for his courtyard.', 'Expenses paid by Li to hire a lawyer to protect his reputation.', 'Transportation and accommodation expenses paid by Wang during negotiation with foreign businessmen.', "Litigation fees paid by Tian to Zhao in a people's court for disputes over the contract of sale."]