The Correct Definition of Embolus Is

The correct definition of embolus is:

A) abnormal quivering of heart muscle fibers instead of an effective heart beat.
B) undissolved matter that floats in the blood or lymph current until it occludes a small vessel, causing an infarct.
C) death of brain cells due to loss of blood supply.
D) abnormal blowing or swishing sound in the heart due to turbulent blood flow or backflow through a leaky valve.