An apartment being treated for roaches was sprayed with a pesticide. In the graph, the number of roaches seen each day was plotted each day after the treatment. Day 0 represents the day before the apartment was treated. What can you conclude from the graph? A) More roaches seen on day 5 than on day 1. B) More roaches seen on day 2 than on day 19. C) The treatment was only effective as a short-term solution. D) The treatment was an effective long-term solution to the problem.