Answer:
Polycythemia
Explanation:
People with polycythemia have an increase in hematocrit, hemoglobin, or red blood cell count above the normal limits.
Medial collateral ligament (MCL) and lateral collateral ligament (LCL)
I'm pretty sure the answer is D because STI's can also be transmitted through blood.
They can always refer to the guidelines that created by the American Medical Association or Research group such as American Heart Association. Those two organization have been proven to deliver researches result with a really high credibility. By using the guideline, they can determine whether the patient need the medication or not