Which of the following contains stem cells that can produce only their own type of cells?

A. 6-week-old embryo

B. 3-day-old embryo

C. Adult

D. Blastocyst

The correct answer of the given question above would be option C. The one that contains stem cells that can produce only their own type of cells would be an adult. It is only an adult has the ability to reproduce another offspring, and this offspring has the same type of cells. Hope this answers your question.