Based on the given excerpt, the most logical answer would be C. "To respond to the counterclaim that veganism is bad for the environment."
The information cited clearly shows that the writer is against the consumption of meat. Choices A and D are more like personal attacks on those of the opposing side of the issue, which is inappropriate during an argumentative essay. Choice B is also invalid since the statistics provided don't mention anything related to an individual's personal health.
D is the only sentence with the correct usage of quotation marks.
To make a comparison between Jekyll’s transformation and real life
The first one means that you tried to stop feeling nervous or you tried to swallow so much that you couldn't.
The second one means that you are getting more nervous, or anxious.
Hope this was helpful!!!^_^