What is the difference between fusion and fission?

Question

A.
Fusion combines large nuclei, while fission combines small nuclei.

B.
Fusion combines small nuclei, while fission combines large nuclei.

C.
Fusion combines large nuclei, while fission splits small nuclei.

D.
Fusion combines small nuclei, while fission splits large nuclei.

Answer 1

B. Fusion combines small nuclei, while fission combines large nuclei.