Are background checks required for private gun sales in Ohio?

In Ohio, background checks are only required for firearm purchases from licensed dealers. This means that for private gun sales, background checks are not required by law. Option A, requiring background checks for all firearm sales, is incorrect because it does not differentiate between private sales and purchases from licensed dealers. Option C, requiring background checks only for handgun sales, is also incorrect because it does not specify that this only applies to purchases from licensed dealers. Option D, requiring background checks only at gun shows, is incorrect because it does not specify that this only applies to purchases from licensed dealers. Therefore, the correct answer is B.