When a C.R question asks what can be "properly concluded," the answer has to be related to things that are not just likely but rather follows directly from the information the passage represents and basically has to be in relation to the information given in the main passage.

In the passage above, Performers usually work with agents "even if agents may take between 10 and 15 percent of a performer's income." Because the Performers reason that agents have the resources to find roles to which the performers might not otherwise have access to.

Option A - incorrect
This statement concludes that for a Performer to secure jobs, he is solely dependent on the agents' accomplishments in searching for jobs.

Option B - incorrect
According to the passage, there no statement that suggests that the Performer and Agents work together. The passage says the artist lands up with the right job and the agent gets the commission.

Option C - correct
This passage says "Representation of Performers by agents is still the predominant way in which theatrical and other Performers secure employment." The bold-underlined word in the passage indicates that the passage is true and can be conducted from the main passage.

Option D - incorrect
The main passage is not concerned with how the Performer's agent generates income, it is just based on the fact that Performer's land the right jobs and the agents get the commission.

Option E - incorrect
This claim doesn't follow the information portrayed in the passage. The passage doesn't talk about the company or people who employ the Performers or who benefit more.