Answer:
The answer is D) It will allow scientists to make personalized medicine.
Explanation:
I used the context of the article where they stated "So for years, scientists have been trying to use cloning techniques to make embryonic stem cells that are essentially a genetic match for patients. The idea is that such a close match would prevent their bodies from rejecting the cells."
The answer to this question is c
The answer for your question is b and c.
Hope this helps:)
Answer:
approximately 4.5 billion years ago
Explanation: