单选题 The trapeze artist who ran away with the clown broke up the lion tamer''s heart.
【正确答案】 C
【答案解析】动词搭配。break up打碎，终止，驱散；break away突然离开，放弃(习惯等)；break down毁掉，制服，中止；而本句要表达的意思是：……令训狮员非常伤心；所以应用break one's heart，选项C正确。