the answer is A. I hope this helps you! :)
Because economy within a certain region will be heavily depended on what resources that are available in that region.
Since the Arabian Pennisula do not possess a good climate to produce agricultural products, it's almost impossible for agricultural sector to flourish in this region, and therefore they focused their economy on things such as oil, silk, zaitun, etc.
Federal law defines a national committee as an organization which, by virtue of the bylaws of a political party, is responsible for the day-to-day operation of the party at the national level, as determined by the Commission
Answer:
He established the largest empire. (c)
