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: Medicine
All are true about thrombotic thrombocytopenic purpura except ? 
Select and explain. 
A. Microangiopathic hemolytic anemia, B. Thrombocytopenia, C. Normal complement level, D. Grossly abnoimal coagulation tests
D: Grossly abnoimal coagulation tests
Answer: D: Grossly abnoimal coagulation tests 
Explanation: None