Well first off we need to check the relationship between the country’s and if any delays are happening during the process of the transportation of the trade. You would also need security and background checks between the traders and the trades being traded and transported to another country. We would also need to know what things to ship and not to ship and make sure everything is safe to be traded.
When sun light enters the atmosphere of earth then it strikes with various layer of atmosphere then the blue light with least speed scatter in the sky to make it look like blue.
Pretty sure the answer is b
