Concept:Extractive occupations involve obtaining raw materials directly from nature.
Explanation:Oil exploration companies search for and extract crude oil from beneath the earth or the sea.
This activity is a primary/extractive occupation because it relies on natural resources.
Other examples include farming, fishing, mining, and lumbering.
They do not manufacture goods, so they are not in secondary production.
They do not mainly provide services, so they are not in tertiary production.
Answer:C. extractive occupation