Which occurs during both DNA replication and protein production?

RNA leaves the nucleus.
DNA leaves the nucleus.
RNA unzips.
DNA unzips.

Question

Which occurs during both DNA replication and protein production?

RNA leaves the nucleus. 
DNA leaves the nucleus. 
RNA unzips. 
DNA unzips.

Vocaloid · Answer

moved to biology

thoughts? to help you out I will eliminate B (DNA does not generally leave the nucleus, as it is first converted to RNA. as a metaphor, DNA is like those restricted reference books in a library, where you're allowed to copy parts of it but they're too valuable to take out)

I will also eliminate C, as RNA is typically single-stranded, and therefore cannot "unzip" (technically dsRNA exists but it's not something you need to know about at this level)