D. is wrong. It should be "One hero in the animation field is Mel Blanc, the voice behind many cartoon characters." because the information after Mel Blanc is not necessary to the sentence. It's just extra, so you need a comma.
"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...
Answer:
This book told him about the migration of Monarch butterflies to Central America. This book aroused his interest in Monarch butterflies and opened a new world of science to him. This proved to be a turning point in the life of young Richard Ebright.
Explanation:
