Which of the Following Would Be Appropriately Modeled by a Poisson

Which of the following would be appropriately modeled by a Poisson distribution?

A) The number of males born in the next seven randomly selected births
B) The number of lesions on a fish exposed to toxic waste
C) The weights of babies born to mothers who regularly smoked during pregnancy
D) The cholesterol levels of adult males before enrolling in a medical drug trial