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.
Answer:
People live close to volcanoes because Geothermal energy can be harnessed by using the steam from underground which has been heated by the Earth's magma.Apart from the volcano itself, hot springs and geysers can also bring in the tourists. This creates many jobs for people in the tourism industry.
What first comes to my mind is that one or more rivers feature very prominently in these civilizations: the Nile in the Egyptian and the Tigris and Euphrates in the Babylonian.
