This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal System, Subject name: Radiology
Short metacarpal seen in? 
Select and explain. 
A. Turner's syndrome, B. Pseudohypoparathyroidism, C. Pseudopseudohypoparathyroidism, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans DCauses of short metacarpal are: Basal cell nevus syndrome, Idiopathic, Chromosomal: Turner syndrome and Pseudohypo- parathyroidism/pseudopseduohypoparathyroidism, Trauma/ infection.