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: Radiology
Physiological calcification of Skull in X-ray is seen in – a) Pineal glandb) Choroid plexusc) Red nucleusd) Basal ganglion 
Select and explain. 
A. acd, B. bcd, C. abd, D. ab
C: abd
Answer: C: abd 
Explanation: Normal variant (Physiological) intracranial calcification is seen in :- Pineal, choroid plexus, Dura, Basal ganglia, Habenular commissure, Dentate nuclei of cerebellum, Parasellar ligaments, and arachnoid granulation.