How are ketones and aldehydes related? A. They have the same functional group.
B. They both contain an amino group.
C. They have the same number of carbon atoms.
D. They are different names for the same thing

the volume increases

i think that the answer is c

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.