EMU is a passenger train with its own power, train set and both ends operating and driving. In another word, it is a ________________ with no locomotive traction. 动车组是一列有自身动力的客运列车，还有列车组、两端运行和驾驶。换句话说，这是一个_______________, 没有机车牵引。
A、power distributed train动力分散型列车
B、power centralized train 动力集中型列车
C、traction car 牵引车厢