This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sleep Disorders, Subject name: Psychiatry
Pagophagia involves eating - 
Select and explain. 
A. Ice, B. Sand, C. Clay, D. Salt
A: Ice
Answer: A: Ice 
Explanation: Ans. is 'a' i.e., Ice GeophagiaEating clayPagophagiaEating icePlambophagiaEating leadAmylophagiaEating starchCoprophagiaEating fecesCautopyreiophagiaEating burnt matchesTricophagiaEating hairLithophagiaEating stonesGeomelophagiaEating raw potatoes