I NEED THE RIGHT ANSWER :(?

K.L.: You seem sharp; however, like so many of us, sometimes we just skip using our natural intelligence to think and use logic. A polygon is just a many sided closed figure. It can have many line segments that make up its sides. The segments must touch at the ends; otherwise, it would not be a closed figure. They cannot cross, only touch each other, no more than the corners of a dollar bill can cross. A line has only length, not a width. A length has a beginning and and an end. In a polygon, a segmant can touch only the segment adjacent to its ends.(2). Of course, this leaves us C as being the answer. Incidentally, did you know that a circle in nothing more than a polygon with an infinite number of sides or the points formed by the bases of an infinite number of isoceles triangles of the same size all having their vertexes at a common or single point.