Which type of anchor should be used only for small, lightweight boats? mushroom-style plow-style block-style clamp-style?

Clamp style anchor is the answer amongst the choices although for smaller boats a fluke style anchor would be best. Although a clamp style would be cheaper and more practical.

Answer

option D) Clamp  -style

is the correct option for this question

Explanation:

Clamp-style of anchor should be used only for small, lightweight boats

A dinghy is a little inflatable pontoon normally made of elastic and includes cross foils and rowlocks that go about as seats and paddles, individually. Normally fueled by sails, paddles and little detachable motors, Dinghies are prevalently known as sailboats, rowboats or just inflatables.