Concept:A subsidiary industry is a smaller business that develops mainly to supply or support a larger, major industry.
Explanation:The major industry is the parent or main producer.
The smaller industry is set up to serve its needs, such as providing raw materials, parts, or services.
This dependent smaller industry is known as a subsidiary industry.
For example, a small packaging plant may grow around a large manufacturing company.
The other options are not defined by this relationship.
Answer:A. subsidiary industry