A 54-year-old Japanese female presents to the clinic complaining of numbness and tingling in her hands and fingers. Physical exam is positive for plethora, and a CBC demonstrates a hematocrit greater...

A 54-year-old Japanese female presents to the clinic complaining of numbness and tingling in her hands and fingers. Physical exam is positive for plethora, and a CBC demonstrates a hematocrit greater than 60% and thrombocytosis. Which of the following is true about her disease?

A. It is caused by an autoimmune disease resulting in low B12.

B. Erythropoietin is increased.

C. The treatment of choice is a therapeutic phlebotomy.

D. A bone marrow biopsy will demonstrate fibrosis.