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
Echinocytes are types of - 
Select and explain. 
A. RBC's, B. Lymphocytes, C. Monocytes, D. Platelets
A: RBC's
Answer: A: RBC's 
Explanation: Echinocytes commonly referred as Burr cells are red cells with morphological abnormalities.They are cell fragments having one or more spines.They are paicularly found in uraemia. Ref: Harsh Mohan textbook of pathology, 7th edition.Pg no.269,270