Ignoring Twins and Other Multiple Births,assume Babies Born at a Hospital

Multiple Choice

Ignoring twins and other multiple births,assume babies born at a hospital are independent events with the probability that a baby is a boy and the probability that a baby is a girl both equal to 0.5.Define events A = {the next two babies are boys} and B = {at least one of the next two babies is a boy}.What do we know about events A and B?

A) They are disjoint.
B) They are complements.
C) They are independent.
D) None of the above