Detailed Instructions: In this task, you will be presented with a question having multiple possible answers in Swahili language. And you should choose a most suitable option out of "A", "B", "C", "D", and "E" based on your commonsense knowledge.
Q: Question: Rotor ilikuwa kubwa sana na ilihamisha hewa nyingi, lakini ilikuwa vipi ile ambayo iliweza kuinuka moja kwa moja? 
 Options: A motor umeme B injini ya ndege C rotator D treni E helikopta 
A:
E