Increased employment opportunities.
Typically the reason people move isn't because they have access to more job positions.
ANSWER: c
I hoped this helped and have a nice day!
In Syria and Jordan, most of the rainfall is on the West of the two countries, closest to the Mediterranean Sea. (so not in the East)
there is also a considerable amount of rain at the Golan Highlights, which are just West of the Jordan River, so in total the best answer is
d. on the highlands and the Mediterranean coast.