67. According to the Tour Itinerary, the route is . (A) South Rim→Guano Point→West Airport→Eagle Point→West Airport→South Rim (B) South Rim→West Airport→Guano Point→Eagle Point→West Airport→South Rim (C) South Rim→West Airport→Eagle Point→Guano Point→West Airport→South Rim (D) South Rim→West Airport→Eagle Point→West Airport→Guano Point→South Rim