The correct options are
B Fish are netted in deep muddy waters or through holes in the ice.
C They are speared in shallow, clear waters at their weirs - low dams of stones placed across streams.
D They use the barbless bone hook on short lines to fish through holes in the ice in winter or from the edge of the ice in spring.
Fish are netted in deep muddy waters or through holes in the ice. They are speared in shallow, clear waters at their weirs - low dams of stones placed across streams. Eskimos also use the barbless bone hook on short lines to fish through holes in the ice in winter or from the edge of the ice in spring. Seals are harpooned from the edges of ice floes or from kayaks.