B, mantle would be your answer
You could become a geography teacher, study the environment, study pollution and climate, landscape architect, tourism officer, study over population, natural disasters, look into poorer countries and how to help them, economy, issues in human society and culture, environmental consultant, town/city planner, conservation officer... seriously, there is LOADS of things, and even jobs that havent been invented yet. Just search up 'What jobs could i get with a geography degree/by studying geography' there are so many things!! Hope this helped :)
The state of Washington has a very good location which benefits its economy and development a lot. The state is located in the northwestern part of the United States. It comes out on the Pacific Ocean, and it has nice coastline which is suitable for ports. Also, it is bordering Canada, and is in very close proximity to the biggest Canadian ports on the Pacific Ocean.
This results in lot of trade going through this state, be it between USA and Canada, or between USA and Asia. Also, it is a state that not only has ports, but has one of the most important ports, through which one of the largest amounts of products and goods go through. They are then distributed throughout the country, or vice versa, they are brought from all over the country.
I think that it would be the last one.
The Saudi Arabia politics are take place in the context of a totalitarian absolute monarchy with some Islamic (Wahhabi Islam) lines, and the King is both the Saudi Arabia's head of state and absolute monarch (i.e. he is the head of government). The King also serves as the head of the Saudi royal family, the House of Saud, which is also why the country bears the name that it has.