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: Anatomy
What is the blood supply of the cervical esophagus- 
Select and explain. 
A. Inferior thyroid artery, B. Superior thyroid artery, C. Bronchial artery, D. External carotid artery
A: Inferior thyroid artery
Answer: A: Inferior thyroid artery 
Explanation: Arterial supply of esophagus
 Cervical part - Inferior thyroid artery
Thoracic part - esophageal branches of descending thoracic aorta, bronchial arteries.
Abdominal part - left inferior phrenic artery, left gastric artery.