Which model represents the process of nuclear fusion?

Picture at the bottom left corner represents nuclear fusion.

Explanation:

Nuclear fusion is a process in which two or more small nuclei combine together to result in the formation of a larger or heavy nuclei along with emission of energy and neutron.

For example,

Thus, we can conclude that picture at the bottom left corner represents nuclear fusion.

the dependant variable is spilled water

the independent is the heat

0.88m hope i am correct : )