Battens are fitted in cargo holds across the frames of the vessel from the turn of the bilge upward. The purpose of these cargo battens is __________.

A
for securing a snatch block when snaking cargo into the wings of the hold
B
to prevent cargo from coming in contact with the vessel's frames or shell plating
C
to provide fittings to which cargo lashings may be secured
D
to support the dunnage floors which are laid down between tiers of cargo
E