Goldfish are sold at 15 cents each. The rectangular coordinate graph showing the cost of 1 to 12 goldfish is:
<spanclass=′latex−bold′>(A)</span>a straight line segment<spanclass=′latex−bold′>(B)</span>a set of horizontal parallel line segments<spanclass=′latex−bold′>(C)</span>a set of vertical parallel line segments<spanclass=′latex−bold′>(D)</span>a finite set of distinct points<spanclass=′latex−bold′>(E)</span>a straight line