关于“变电站馈出电流减小，其中电流峰值降幅平均可达40%。”一句的两种英文表述：
①The out-feed current of the substation decreases, and the average decline in current peak is 40%. ②The out-feed current of the substation decreases with an average decline of 40% in current peak.
说法正确的是________。
A、①正确，②错误 
B、①错误，②正确 
C、①正确，②更好 
D、①错误，②错误