The correct answer is D. Appearance.
Explanation
When a person is going to visit a medical professional, he/she must have several factors in mind. The first factor is the cost because this may vary depending on the medical professional and also this needs to fit your budget. Another factor is the distance because you need to find a medical professional in your area except in case you can travel. Also, you need to consider the accessibility because in many cases you can only access those medical professionals that are private or part of your insurance but not those outside it.
On the contrary, the appearance is not a determining factor to select a medical professional, because the appearance is not an indicator of the quality, knowledge or suitability of the medical professional, and this factor does not affect the patient as in the case of a high cost or lack of accessibility. So, the correct answer is D. Appearance
