Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not correct explanation of A.

A is true but R is false.

A is false but R is true.

two points

four points

six points

eight points

(i) and (ii) are correct

(i) and (iii) are correct

Only (ii) is correct

Only (iii) is correct

bollard

buoys

cables

anchors

one - third highest waves

one - fourth highest waves

one - fifth highest waves

one - tenth highest waves