Bc it has way more investment and stuf f
The answer is - c. serving in the military.
Just to be clear, serving in the military is not forbidden for Israeli Arabs, but it is the only thing that is not ''required'' of them to do. Israelies have to go to military service, while Israeli Arabs are not ''required'' to do that. Even though most of them don't do it, still there's the occasional exception where some of them want to go to military service and they do attend it.
I believe that the answer is c. Humans can affect the physical environment by not upkeeping it. Also the physical environment can affect humans, for example, too much pollution can result in a sickness