Detailed Instructions: In this task, you will be presented with a question that has multiple possible answers. You should choose the most suitable option out of "A", "B", "C", "D", and "E", based on your commonsense knowledge.
Problem:Question: The rotor was very loud and moved a lot of air, but it was how the what was able to lift straight up? 
 Options: A helicopter B jet engine C rotator D train E electric motor 
Solution:
A