What is the relationship between SHA$-256$ and SHA$-2-256?$

SHA$-256$ is the $256-$bit of SHA$-1$ while SHA$-2-256$ is the $256-$bit version of SHA$-2$

They use the same hash algorithm but SHA$-256$ hashes the data once, while SHA$-2-256$ hashes the data twice

SHA$-256$ is approved for government use by NIST while SHA$-2256$ has not been approved at this time.

They are different names for the same hash.

None of the above.