S1:M.V. Blue Whale, Bridge to Mate. Swing out Lifeboat No.1 and report. Over.S2:M M.V. Blu

e Whale, Mat to Bridge. Lifeboat No.1 swung out, Sir.S1:M.V. Blue Whale, Bridge to Mate. Lower Lifeboad No.1 alongside the embarkation deck and report. Over.S2:M.V. Blue Whale, Mate to Bridge. Lifeboat No.1 is alongside the embarkation deck, Sir.S1:M.V. Blue Whale, Bridge to Mate. Enter the lifeboad via ladders. Over.S2:M.V. Blue Whale, Mate to Bridge. Lifeboad No.1 entered. Over.S1:M.V. Blue Whale, Brige to Mate. Inform coast radio stations of the number of crewmembers in each lifeboat and report. Over.S2:M.V. Blue Whale, Mate to Bridge. Coast radio stations informed. Over.S1:M.V. Blue Whale, Bridge to Mate. Stand clear of the vessel and report. Over.S2:M.V. Blue Whale, Mate to Brideg. Lifeboat No.1 standing clear of the vessel now. Over. Q1:What are they most probably doing？A．They are checking the status of lifeboats．B．They are evacuating from the engine room．C．They are abandoning vessel．D．They are checking status of escape routes．