Then choose the condition that would make it more likely for two nuclei to fuse together. Choose one: A. The nuclei are moving slowly with respect to one another. B. The nuclei have opposite charges. C. The nuclei are moving fast with respect to one another. D. The nuclei are very massive.

Answer is option "C"

Explanation:

There are three types of nuclear responses, every one of which makes the core shoot out an alternate, fast-moving molecule (like a photon or electron). These discharged particles are a reaction of the component changing its nuclear number or mass, and they are what researchers by and large mean when they caution about nuclear radiation since fast-moving particles can act like little slugs that jab openings in your body. In any case, much nuclear radiation is really innocuous, and it every so often can be harnessed to give other types of clinical or diagnostic apparatuses.So, the correct answer is option "C"

The answer is observations and interpreting.