Is it allowed to ride a motorcycle between lanes of traffic?

In Iowa, it is illegal to ride a motorcycle between lanes of traffic, also known as lane splitting. This practice is not permitted for safety reasons and to ensure the orderly flow of traffic. Lane splitting can create hazards not only for motorcyclists but also for other drivers, as it can lead to unexpected maneuvers and accidents. Therefore, option D accurately reflects the law prohibiting this practice, reinforcing the importance of adhering to traffic regulations designed to protect all road users.