If a manufacturer buys wheat directly from farmers, grinds it into flour, and then produces a variety of boxed breakfast cereal with the guidance of its research and development division, which of the following is true? It is considered a primary industry because it starts with unrefined raw materials.
It is considered a secondary industry because it transforms basic materials into finished goods.
It is considered a quaternary industry because it involves research and development.
It is considered a tertiary industry because it involves three production phases.