Which of the following statements is true regarding the inheritance of a human X-linked recessive trait if the mother is a carrier and the father is affected? a) At least one affected individual will...

Which of the following statements is true regarding the inheritance of a human X-linked recessive trait if the mother is a carrier and the father is affected?

a) At least one affected individual will be present in every generation

b) all sons will be affected

c) None of the offspring will be affected

d) all daughters will be affected

e) on average, half of the daughters will be affected and half of the sons will be affected