单选题 Before deciding to litigate the matter, they had tried to negotiate a solution out of court.
【正确答案】 C
【答案解析】[解析] 句意：在提出诉讼之前，他们试着通过庭外协商解决这一问题。litigate提出诉讼。claim诉讼；声称。blame指责。clear清除。disturb打扰。