Which of the following statements related to infective endocarditis (bacterial endocarditis) is INCORRECT?
A. It is a complication of valvular heart disease.
B. Fibrin-platelet thrombi form on rough valve surface; bacteria implant in the thrombus and incite inflammation.
C. Microorganisms never implant on a normal heart valve.
D. Part of valve vegetations may break loose and be carried into the circulation as emboli.