Geographic isolation could be caused by a number of environmental factors. If a population of people or species live on an island, amongst mountains, in difficult to navigate terrain, or deep into rainforest or forests generally these groups could experience geographic isolation. Geographic largely occurs if a population or group of people or animals live in a remote region of the world that has little access to others due to any number of geographic features.
Answer:
D. The input of land, labor, and capital.
Explanation:
Production doesn't take place in the sky. There has to be a location and localization first of all, after which capital is employed to start a production process before advertisement and distribution of goods or services.