Which of the following is true about transporting firearms in a vehicle under Ohio law?

Under Ohio law, when transporting a firearm in a vehicle, it is required to be unloaded and kept in a case separate from any ammunition. Choice A is incorrect because only keeping the firearm in a locked glove compartment is not enough to ensure its safety and prevent accidents. Choice C is incorrect because it is illegal to transport a loaded firearm in a vehicle, even if it is on the passenger seat. Choice D is incorrect because it is not necessary for the firearm to be visible at all times, as long as it is securely stored in a case.