I believe the answer to your question is C.
He is most likely studying for pharmacotherapy since it is the study of medical treatment by means of drugs.
Pharmacokinetics studies hows the drugs move throughout the body. Both pharmacogenetics and pharacogenomics include the study of a person's genes.
Personal space can negatively effect communication by either distancing yourself or in a relationships case cause unresolved conflicts
Pets or neighbors idk its either one
