单选题 The results of the experiments performed by Elizabeth and Rachel were______not only because these results challenged old assumptions but also because they called the prevailing methodology into question.
【正确答案】 A
【答案解析】解析：A项provocative“挑衅性的”；B项predictable“可预测的”：C项inconclusive“非决定性的”；D项intriguing“迷人的”。只有A的含义符合句意。