Is a background check required at gun shows in Utah?

In Utah, a state law requires a background check for all gun purchases made by licensed dealers at gun shows, but not for private sales. This means that option A, which states that all sales at gun shows require a background check, is incorrect. Option B is also incorrect because private sales do not require a background check. Option D is incorrect because it specifies only handgun sales, when the law applies to all gun sales made by licensed dealers. Therefore, the correct answer is C.