The correct answer is A) growth poles. Places of economic activity organized around one or more high-growth industries, which act as a catalyst for the development of related industries and services, are known as growth poles.
The concept of growth poles was first introduced by Francois Perroux in the 1950s as a way to explain how economic development could be stimulated in lagging regions by promoting the growth of key industries. Growth poles are intended to act as engines of growth, creating jobs, generating wealth, and attracting investment to the surrounding area. They are often supported by government policies and programs aimed at promoting regional development and industrial competitiveness.