Art as a symbol? Please do help me po hhuhuhuhuhu

In art, a symbol is usually a solid, recognizable thing—an animal, a plant, an object, etc. —that stands for something that would be hard to show in a picture or a sculpture. A force of nature, for example, or an idea. A symbol can also stand for someone's whole story.

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answer; i believe the correct answer is (forms with no projecting parts that could break;

changeable lenses of different focal lengths allows light to enter the camera,which then forms the image on light-sensitive film;