The correct options are
B A Marapadava often doesn't have any first-aid equipment on the boat.
C A Marapadava often doesn't have any life jackets on the boat.
D A Marapadava much farther into the sea than a Karrateppa.
Even though a Marapadava is mechanized, it poses various risks. It goes far into the sea from where it is difficult to swim and reach the shore in case of any accidents. Moreover, Marapadavas often don't have any life jackets or first-aid equipment, in case there are any untoward incidents out in the sea.