Trust of 10 film producers and distributors who attempted to gain complete control of the motion-picture industry in the united states from 1908 to 1912. notorious for enforcing its restrictions by refusing equipment to uncooperative filmmakers and theatre owners and for its attempts to terrorize independent film producers.

Motion Picture Patents Company  

Explanation:

It was known as MPPC or Edison Trust. It was created in 1908 but only worked for seven years due to industry difficulties. It was made of basically the most important film companies in the United States and foreign-branches. Some of them were: Eastman Kodak, Biograph, Vitagraph, Lubin Manufacturing, Essanay, among others.

that is good that you know it

the answer to your question is d. any light source appearing in a scene

explanation: