Answer: C. to persuade readers that modern forms of indentured servitude exist
Answer: A. the public producing the media
Explanation: I chose A because blogging means add new material.
Go to a dictionary online. People here could give you a definition that's correct, but not the dictionary definition. Plus it's against the rules to copy paste from a website. ;) https://www.oxforddictionaries.com/ here's a website.