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
Which of the following is not true regarding Whipple's Disease ? 
Select and explain. 
A. Bacteria laden macrophages are present in lymphatic system., B. It has autoimmune etiology., C. PAS positive diastase resistant granules are present., D. Foamy macrophages are characteristics .
B: It has autoimmune etiology.
Answer: B: It has autoimmune etiology. 
Explanation: Whipple's disease is caused by Gram positive actinomycete Tropheryma whipplei.