You have been hired by a vendor who is preparing for an upcoming K-Pop (Korean pop music) concert featuring the singer IU (Lee Ji-eun) in Cincinnati. The concert organizer is allowing vendors to sell IU paraphernalia. You determine that certain one-size-fits-all winter hats featuring IU's image will be sold. You have four choices for OEM suppliers of the hats. Due to their locations, their lead times differ, along with your costs. B