Therapeutic cloning is a procedure that creates embryonic stem cells using embryos produced by in vitro fertilization clinics. These embryonic stem cells can be cultured in laboratories to produce tissues or organs that help replace damaged tissues or organs in individuals. Transplanted cells obtained from embryonic stem cells can develop therapies for many health issues such as diabetes, heart disease, vision loss, and hearing loss.

What is a potential ethical issue regarding the use of embryonic stem cells to develop new therapies?

A) The embryos have to be destroyed to be available for stem cell harvesting

B) The process is too slow because stem cells take a long time to develop into organs

C) Tissues or organs developed using embryonic stem cells can cause other diseases in patients.

D) Patients with tissues or organs developed using embryonic stem cells pose threats to other species.