Answer:
The correct answer is option D) "The chemicals illegally dumped may cause lymphoma to occur at a higher rate".
Step-by-step explanation:
In the graph "Occurrence of Lymphoma" it can be noticed that the lymphoma rate was higher for people living near the factory (local rate), but as times went by, the national rate started to be as high as the local rate. By analyzing this data it can be concluded that the chemicals illegally dumped may cause lymphoma to occur at a higher rate. The chemicals that affect people living locally started to affect people around the nation because they were illegally dumped. I attached the missing graph.