Final answer:
A weight-distributing hitch applies leverage between the tow vehicle and trailer, distributing the tongue weight among all wheels of the vehicle and the trailer.
Step-by-step explanation:
The correct answer is B) Weight-distributing hitch. A weight-distributing hitch applies leverage between the tow vehicle and trailer, distributing the tongue weight among all wheels of the vehicle and the trailer. This helps to ensure better stability and control while towing.