Respuesta :
Answer:
B
Explanation:
This question is actually very debatable as I have researched in the past. Most sources say electric motors because they don't require as high of a voltage to start compared to internal combustion engines, generators. and tractors.
Hope this helped, but I suggest doing more research :)
Lets narrow this down. C and B is obviously incorrect because they both have high speeds. So I think the answer is D because a tractor has a lot of torque at low speeds.