The correct answer is B. Silhoutte. The correct spelling is silhouette.
A silhouette is a solid shape or outline of an object against a lighter background. It can be created by blocking out light or by using a dark object against a light background.
A shutter is a movable cover or curtain that is used to open and close an opening, such as a window or a camera lens.
A shepherd is a person who takes care of sheep.
A shield is a piece of armor that is used to protect the body from attack.