Who is required to undergo a background check when purchasing a firearm from a licensed dealer in New Hampshire?

In New Hampshire, all individuals, regardless of residency, are required to undergo a background check when purchasing a firearm from a licensed dealer. This means that even residents of New Hampshire must undergo a background check before buying a firearm. This requirement helps ensure that firearms do not end up in the hands of individuals who are prohibited by law from owning them.

Options A, B, and D are incorrect because the background check requirement applies to all individuals, regardless of whether they are residents of New Hampshire or not.