19.船型為船舶的側面形狀與船體之上層結構及機艙在船縱向位置之配置有關,請問圖中所示為何種類型船舶?(A)平甲板型船(Flush Deck Vessel)(B)井圍甲板型船(Well Deck Vessel)(C)遮陽甲板型船(Shade Deck Vessel)(D)遮蔽甲板型船(Shelter Deck Vessel)