常开触点与左母线连接是下面哪个命令 （  ）

A、<span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; COLOR: black; FONT-SIZE: 14px">LD</span>

B、<span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; COLOR: black; FONT-SIZE: 14px">LDN&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>

C、<span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; COLOR: black; FONT-SIZE: 14px">OUT&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>

D、<span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; COLOR: black; FONT-SIZE: 14px">ANI</span>