Identify the correct comparison in the genetic characteristics between embryonic and adult stem cells.

A) Adult stem cells can produce any of the differentiated cells, while embryonic stem cells can't.
B) Embryonic stem cells are collected from the testes and ovaries, while adult stem cells are collected from other tissues.
C) Embryonic stem cells can produce any of the differentiated cells, while adult stem cells can't.
D) There is not real genetic difference between embryonic and adult stem cells, except how they were collected.
E) Embryonic stem cells are produced naturally in human development, while adult stem cells are from cloning.