Which industries are examples of natural monopolies? Check all that apply.pipelinesrailway linessupermarketselectric companiessporting goods stores fixed-line telephone companies

Natural monopolies occur when one provider can serve the whole market at a lower cost than several competing providers, often because the business requires expensive networks or infrastructure. Pipelines, railway lines, electric companies, and fixed-line telephone companies fit this pattern. Supermarkets and sporting goods stores do not generally require a single shared network, so they can support competing businesses.

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