[单选题]S1 Stand by pilot ladder. Rig the pilot ladder on port side. S2:The pilot ladder is rigged on the port side, sir. S1:oh, no, the pilot ladder has broken spreaders. You must replace it with another l adder. S2:OK. I will replace it right now. S1:Now move the pilot ladder 1.5 meters forward, and put lights on at the pilot ladder. S2:Understood, Sir.Lights are put on at the pilot ladder now, Sir. 1:Where is tbe pilot ladder rigged?( ) A.port side. B. starboard side. C. stem. D. stern.