The correct answer is option D) "all of these are potential uses".
Explanation:
Stem cell therapy is a promising technology based on stem cells capacity of dividing in practically any cell type in the body. Stem cell therapy can help cure Alzheimer's disease, since it could potentially replace the neuron cells that are lost in this disease. This therapy can help with bone marrow transplants, by synthesizing bone marrow in vitro instead of looking for donors. Stem cell therapy can also help to test new medications, since the tests often require to prove new drugs toxicity, and stem cells can be used for this purpose.
