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
NOT true is: 
Select and explain. 
A. Superior thyroid aery is branch of external carotid, B. Parathyroid aery is a branch post division of superior thyroid aery, C. Inferior thyroid aery is branch of thyrocervical trunk, D. Thyroid ima aery is invariaby a branch of arch of aoa
B: Parathyroid aery is a branch post division of superior thyroid aery
Answer: B: Parathyroid aery is a branch post division of superior thyroid aery 
Explanation: Parathyroid aeries are usually branches of inferior thyroid (& not superior thyroid) aery Superior thyoid aery is a branch evternal carotid aery & contributes paly towards the parathyroids blood supply Inferior thyroid aery is a branch of thyrocervical trunk & is the main source of blood supply to the parathyroids. Thyroid ima aery is present in a small group of population & has a variable origin (may be a branch of arch of aoa, subclan aery, common carotid aery).