This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
3 year old child has a central incisor that has turned
bluish black. There is a small radiolucent area at the
apex of the tooth. Ideal treatment is 
Select and explain. 
A. Extraction, B. Pulpotomy with formocresol, C. Pulpectomy; fill with zinc oxide eugenol, D. Pulpotomy with calcium hydroxide
C: Pulpectomy; fill with zinc oxide eugenol
Answer: C: Pulpectomy; fill with zinc oxide eugenol 
Explanation: None