Answer: D. Dentista
Step-by-step explanation:
"Me duele un diente, tengo que ir al.." translates to "My tooth hurts, I have to go to the.."
A. Bombero = Firefighter
B. Policia = Police
C. Doctor = Doctor
D. Dentista = Dentist
If your tooth hurts, you would go to the dentist. This means the answer to your question is;
D. Dentista