Answer:
The correct answer is option:
C. A small group of people could now own and operate multiple companies in an industry.
Step-by-step explanation:
The creation of the trust changed the way businesses operate in that "A small group of people could now own and operate multiple companies in an industry".
During the Gilded Age, trusts created monopolies. Wealthy people began buying their rivals until they owned vertically and horizontally practically the entire process. That was the case with John D. Rockefeller's Standard Oil Company or Andrew Carnegie's Steel Company.