The teacher asks students to do a group-work task. Before the task, the teacher assigns roles clearly around the class, pointing to each student in turn.'You are A ... you are B ..., etc.' Here the teacher plays the role of_______
【单选题】Where the Shipowner has accepted the port of discharge named by the Charterer,he must go there although it is not prospectively safe,and claim damages for injury ______ the ship by reason of the port ...