I believe its A. I could be incorrect though.
One good reason would be that they could give someone, or many people who are in desperate need of a new organ, a second chance at life.
The answer is A
Explanation
The liquid is like a existence but it is like a tides but more detail
usually, ionic bond occurs between metal and non metal
here Na is metal and Cl is non metal
so bond in NaCl is ionic bond
