What Is the Current Medical Opinion Regarding the Safety of Aspirin

What is the current medical opinion regarding the safety of aspirin during pregnancy?

A) The congenital defects associated with heavy aspirin use during pregnancy are so minor that physicians believe there is more risk in avoiding it than in taking it.
B) Physicians agree that aspirin is likely to have devastating affects on prenatal development and even one dose should be avoided at all costs.
C) It is easy to predict who will be affected by aspirin, so only those individuals need to avoid it.
D) Heavy use correlates with fetal growth retardation, malformations, and even death.