<span>The pharynx forms the food substance into balls and then pushes it/them into the </span>esophagus. From there it goes to the stomach where acids take care of it.
<span>B. a type of drug used to cure, prevent, or treat illness or discomfort.</span>
Paul is most likely experiencing B: overdosing and or D: withdrawal symptoms
This may not be entirely helpful, but I would rule it down to either A or C. C seems most likely in my opinion.
