Answer:
c . a proton
Protons and neutrons have approximately the same mass, about 1.67 × 10−24 grams
I'm not quite sure but I think if you field the corner or cut it it would physically change it while not creating something new (chemical change).
The following carbon-based molecules store information are found in living things.
All organism are made of 4 type of carbon-based= carbon hydrate, lipids, proteins, and nuclear acid