研究五服制度，可以更加深刻地理解古人的“天下”观念。据《国语·周语》记载，周穆王时祭公谋父曾阐发过“五服”说：“先王之制，邦内甸服（“服”即“服事天子”），邦外侯服，侯卫宾服，夷蛮要服，戎狄荒服。”据此可知，西周时管辖“甸服”之地的是（  ）

已知数列{a_n}的各项均为正数，执行程序框图（如图），当k=4时，S=$\frac{1}{3}$，则a₂₀₁₄=（　　）

根据材料内容，选择正确答案。   

    Some people in the West like to stay at home during their weekends. They work in the garden, visit their friends, read books or watch television. Many families take their lunch to a park or somewhere far from the city. They like to eat under some trees or near a nice lake. If they live near the sea, they often go to the seaside. There they can fish, swim or enjoy the sunshine.

    Some people in the West like travelling. They think travelling and outdoor activities are interesting and exciting. They work hard to save money, but their main purpose is to travel.

    Most Western students often make use of their weekends to camp. There are thousands of interesting camp bases in Western countries. They can swim, go fishing, attend lectures, and take part in many other activities there. It can help them quest_ for the secrets of nature and teach them how to be self ­reliant(自立的).