Suppose there is a 60% chance that a white blood cell will be a neutrophil.If a group of researchers randomly selected 15 white blood cells for their pioneer study, what is the probability that half (i.e. 7.5) or less of the sample are neutrophils? OA60% OB) 0.21% C) 21.48% D) 78.52% O E) -0.79%