A Human Gene Carries a Certain Disease from a Mother

A human gene carries a certain disease from a mother to her child with a probability rate of 0.40. That is, there is a 40% chance that the child becomes infected with the disease. Suppose a female
Carrier of the gene has three children. Assume that the infections, or lack thereof, are independent
Of one another. Find the probability that all three of the children get the disease from their mother.

A) 0.216
B) 0.144
C) 0.064
D) 0.936