A. Most embryonic stem cells are derived from embryos that develop from eggs that have been fertilized in in vitro procedure- the joining of a woman's egg and a man's sperm in a laboratory dish.
B. These embryonic stem cells would become test-tube babies or be used for scientific testing.
C. Some people consider this to be unethical because they regard this as a form of abortion, and it is against certain religious and cultural views, as well as personal beliefs. While some people consider it NOT unethical because they do not refer to this as a human. Because it does not have psychological, emotional, and physical properties that can be associated with a "being a person".
