Final answer:
Sterile water is not isotonic and cannot be used as a transport media for human hearts.
Step-by-step explanation:
The solution that is not isotonic and cannot be used as a transport media for human hearts is b. Sterile water. Isotonic solutions have the same osmolarity as body fluids, meaning they have the same concentration of solutes. Sterile water, on the other hand, is hypotonic, meaning it has a lower concentration of solutes compared to body fluids. Injecting hypotonic solutions can cause red blood cells to burst, which is why it is not suitable for use as a transport media for human hearts.