Hi :)
A hypotonic solution has a lower concentration of solutes than another solution
In biology, a solution outside of a cell is called hypotonic if it has a lower concentration of solutes relative to the cytosol
Due to osmotic pressure, water diffuses into the cell, and the cell often appears turgid, or bloated
Hope this helps :)
They are carried out by proteins
Is this just a random question or is there any information given to us about his parents? if not, C would be your answer