【单选题】

Make sure that the flaps are retracted and the aileron trim handwheel is in the zero position.

A、确保襟翼和副翼微调手轮已收回并处于零位置。
B、确保襟翼收起到零位，且副翼配平手轮处于零位。
C、确保襟翼收上，副翼配平手轮处于零位。