The correct answer is D. His pain when using the restroom
Explanation:
The purpose of an annual health checkup is for the doctor to evaluate your health state and address or prevent any health issues related to it. Additionally, this annual health checkup is performed by a general physician, a family medicine doctor or similar, due to this, the annual health checkup includes an assessment of your general health state through a physical exam, tests, etc; however, an annual health checkup might not address aspects related psychology or dentistry.
Therefore, the topic Zak should discuss in his annual health checkup is "his pain when using the restroom" because this is a health issue his doctor might want to know to address considering this can be an early stage of different conditions. Also, this topic is the only one that is directly related to the general health state of Zak and can be addressed by a general physician or similar professionals. For example, "his aching tooth" is a topic Zak will need to discuss with a dentist.
