Question 1854Navigation General

The correct answer is D) dike. A dike is a structure, usually made of stone or cement pilings, that extends from the bank at approximately right angles to the current. This type of structure is designed to prevent erosion and protect the shoreline from the force of the water. The other answer choices are incorrect: A) cutoff is not a term used to describe this type of structure, B) a revetment is a sloped structure used to protect a shoreline, and C) a crib is a type of structure used to create a breakwater or retaining wall, but not one that extends perpendicular to the current.