Answer:
Maybe C.
Explanation:
A is a chemical change,
B is a chemical change
C is a physical change,
and D is a chemical change.
A physical change is when you combine something that you can take apart again, like salad.
A chemical change is when you combine something that you can't take apart, like Na + Cl = NaCl. It is incredibly difficult to take apart things at the atomic level!
Hope this helped!
