Answer:
c. A nucleus with a large mass will be on the left side, and there will be neutrons in the equation.
Step-by-step explanation:
In the process of nuclear fission, a neutron collides with a nucleus with a large mass and that nucleus splits into isotopes (substances that have the same atomic number that the original substance, but different weight number).
In this case, the nucleus with a large mass is U and n represents the neutrons.