A diagram of a curved object, which appears to be a crescent moon. The object is green in color and has a curved shape. On the right side of the image, there are two arrows pointing in opposite directions, one pointing towards the left and the other towards the right. The arrows are labeled A, B, and C, and they are pointing towards a point at the center of the object.
User bettiii uploaded the image
User bettiii uploaded the image
