This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
Heyde's syndrome is 
Select and explain. 
A. Mitral stenosis, ahritis, and biliary cirrhosis, B. Mitral regurgitation, hiatus hernia, and cirrhosis, C. Aoic stenosis, gastrointestinal bleeding and angiodysplasia of colon, D. Pulmonary aerial hypeension, tricuspid regurgitation, and cirrhosis
C: Aoic stenosis, gastrointestinal bleeding and angiodysplasia of colon
Answer: C: Aoic stenosis, gastrointestinal bleeding and angiodysplasia of colon 
Explanation: Heyde's syndrome: GIT bleeding Angiodysplasia Aoic stenosis Caused by the induction of Von Willebrand disease type IIA (vWD-2A) by depletion of vWF in blood flowing through the narrowed valvular stenosis. ref - pubmed.com <a href=" <p>