单选题 The basic ______ of their philosophy is that everyone should be free to do as they please, as long as they do not harm others.
【正确答案】 C
【答案解析】[解析] 名词词义辨析。句中philosophy意为“人生观”。与形容词basic搭配合理的名词为premise(前提)。故答案为C。