This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
What is the blood supply of the cervical esophagus ? 
Select and explain. 
A. Inferior thyroid aery, B. Superior thyroid aery, C. Bronchial aery, D. External carotid aery
A: Inferior thyroid aery
Answer: A: Inferior thyroid aery 
Explanation: Bronchial aeries supply the thoracic pa of esophagus. Inferior thyroid aery provides primary aerial flow to the cervical esophagus, and subclan aery, main carotid aery, veebral aeries, ascendant pharyngeal aery, superficial cervical aery, and costocervical trunk are other aerial blood flow providers to cervical esophagus Reference: Clinical anatomy for students a problem-solving approach, Neeat v Kulkarni, 2nd edition, page no.288