Final answer:
A proctologist is a physician who specializes in the study and treatment of the anus and rectum. The term proctology refers to the field of medicine dealing with these disorders, whereas proctoplasty is a surgical procedure for the rectal area.
Step-by-step explanation:
The correct answer to the question of which title refers to a physician who specializes in the study of the anus and the rectum is c. Proctologist.
A proctologist is a medical professional who diagnoses and treats disorders related to the colon, rectum, and anus. This can include conditions such as hemorrhoids, fissures, abscesses, and various forms of cancer. The term proctology refers to the medical field that is concerned with these disorders (Proctology), while proctalgia is a term for pain in the rectal region. Proctoplasty, on the other hand, is a surgical procedure carried out to repair and reconstruct the rectal area. Therefore, a proctologist is the physician specializing in this domain of medicine.