Pure monopolists obtain economic profits in the long run because 'barriers to entry keep other companies from entering the market'. Hence, option 'E' is the correct answer.
Pure monopolist refers to a type of entity in the economic market in which a single corporation handles the whole supply of goods and services. A pure monopolist determines all its terms, rules, conditions, and pricing. Pure monopolists have the advantage to obtain more profits in the long run of their businesses. It is because in a pure monopoly market there exist high barriers to entering into the market as it requires significant startup costs.
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