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: Pathology
Platelet Dense granules contain all except - 
Select and explain. 
A. ADP, B. 5-HT, C. Calcium, D. VWF
D: VWF
Answer: D: VWF 
Explanation: Platelets contain two specific types of granules : -
A) Alpha granule → Contains fibrinogen, fibronectin, factors V & VIII, PDGF, TGF- β and platelet factor 4.
B) Dense bodies or δ granules → Contain ADP, Ca+2, histamine, serotonin, and epinephrine.