单选题 It is difficult to distinguish between the things that celebrities do ______ and those that are carefully contrived for effect.无

【正确答案】 C

【答案解析】句意：要区分名人们自己主动做的事情和他们为了给人良好印象而策划出的事情是件困难的事。 spontaneously自发的。reluctantly不情愿地。 publicly公然地。 prolifically丰富地。因此，本题的正确答案为C。