After the Chernobyl disaster, at least 116,000 people were permanently evacuated from the area receiving the highest levels of radiation. Which option is BEST supported by this information AND the data shown in the graph?

A
Human activities have a greater impact than radiation levels on some species. Some populations of organisms decreased during periods with high levels of radiation after humans left the area.

B
Human activities have less of an impact than radiation levels on some species. Some populations of organisms increased during periods with high levels of radiation after humans left the area.

C
Human activities have a greater impact than radiation levels on some species. Some populations of organisms increased during periods with high levels of radiation after humans left the area.

D
Human activities have less of an impact than radiation levels on some species. Some populations of organisms decreased during periods with high levels of radiation after humans left the area.