Question

A large grouping of business interests with significant market power, which may be embodied as a group of companies that cooperate with
one another in various ways

Answer 1

Answer:

A corporate trust

Explanation:

A trust or corporate trust is a chain of businesses that have sizeable market power and cooperate with each other in different ways such as being members of a trade association, co-owning stock, or forming a conglomerate.

Thus, the correct answer is corporate trust because they do all those functions listed.