Answer:
The correct answer is option B.
Explanation:
Fission is a process in which nuclei breaks apart into two. It is also called as nuclear fission. It can be controlled or uncontrolled process in this process high amount of energy release.
Fusion is the process in which two nuclei fuse to put them together. It is also termed as nuclear fission which releases more energy than nuclear fission.
Thus, the correct answer is option C.
