This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
[{'content': 'Gamma Gandy bodies contains hemosiderin and - \nSelect and explain. \nA. Na+, B. Ca++, C. Mg++, D. Cl-', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Gamna gandy bodies in CVC spleen is characterised by calcific deposits admixed with hemosiderin on fibrous tissue. Gandy-Gamna nodules or Gandy-Gamna bodies, sometimes known as Gamna-Gandy bodies or Gamna-Gandy nodules, are small yellow-brown, brown, or rust-colored foci found in the spleen in patients with splenomegaly due to poal hypeension, as well as sickle cell disease. Ref: Harsh Mohan textbook of pathology,pg:35', 'role': 'assistant'}]