Which Statement About Reproductive Technologies Is True

Which statement about reproductive technologies is true?

A) During artificial insemination, a physician places sperm and eggs into the female's reproductive tract.
B) During intracytoplasmic sperm injection, a sperm is injected directly into the cytoplasm of an egg that is soon to be released from the ovary.
C) In vitro fertilization has resulted in just over 5,000 babies since its introduction in the 1970s.
D) Intracytoplasmic sperm injection is useful when sperm cannot penetrate an egg.
E) Artificial insemination is a method commonly used for humans but has yet to be used in livestock production.