...spend about 10 hours a day in front of a computer or other...
根据第三段中的"Located a 20-minute drive from central Durban, the resort town of Umhlanga is an upmarket getaway for vacationing South Africans and visitors in the know."中的"an upmarket getaway"意为"高档的度假胜地",由此可知"Umhlanga Rocks, Durban"适合富人度假。故选B。 (3)考查细节理解。