They aim to maintain control over and protect one's own ideals and inventions ( such as literature, artistr, designs, symbols, names, and images used in commerce) by uaing patents, trademarks, and copyright
Internet (youtube for example)
The answer is A, because the protagonist is the main character, and that's what Rider is. The other answers don't really make sense in terms of the role he plays in the story.
Hope I helped!
Answer:
When he helped establish the Cinque Gallery in 1969.
