The answer is C.
The author provides different facts. For instance, "Unlike normal rocks, they have trails etched behind them as if they have traveled across the sand. Some trails are only a few feet. Some trails are over a half a mile long." Is an example of a fact.
Another example includes, "Some rocks seem to roll as they move forward. Some take unexplainable routes. Large ones have traveled past small ones that have stayed still."
Answer:
I haven't read the book yet, but if I did it would be B
"At the same time, circuits involved in stress become increasingly sensitive, leading to increased displeasure and negative moods when not taking the drug, which are signs of withdrawal. These combined effects make the user more likely to focus on seeking the drug instead of relationships, food, or other natural rewards." I got it from this wedsite just in case you need more info about it. https://www.drugabuse.gov/publications/research-reports/cocaine/what-are-long-term-effects-cocaine-u...
