【正确答案】
A
【答案解析】[解析] abide by:遵守。而stick to有“坚持,遵守”的意思,例如:I'm going to stick to my decision.我会坚守自己的决定。persist in:坚持。例如:Must you persist in misunderstanding me?你一定要执意误解我的意思吗?safeguard:捍卫,例如:The law contains new safeguards to protect consumers.这一法律中包含了保护消费者利益的新的保障措施。apply:应用,例如:Apply as much force as necessary.需要多少力量就用多少。