The correct answer is D) runs from a low supporting level up to the cargo at an angle. A shore is a piece of securing dunnage that is used to support cargo and prevent it from shifting during transport. Specifically, a shore runs at an angle from a lower supporting structure, such as a deck or the ship's hull, up to the cargo itself. This angled placement helps to distribute the weight of the cargo and keep it securely in place. The other answer choices are incorrect because: A) describes a different type of dunnage used to distribute weight, B) refers to a "distance piece" which has a different function, and C) describes a horizontal rather than angled support piece.