replacing “scalpel” with the nearby synonym “blade”
Explanation:
When you are searching for the meaning of a word in a text and can´t quite figure it out, you can search for nearby synonims and read the context that is given to you to try and understand what are you talking about, Scalpels are ultra sharped blades commonly used with medical purposes.
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.
