out of the 3 branches of government I would say the executive branch.......if not then ima say President
The answer is C. poor trading products, causing people not to desire the goods others made. If I am wrong please let me know and tell me the correct answer.
The science that isn't considered a social scence from the ones you've mentioned would definitely be biology as it studies the relation between things on a very small level and often includes dead specimens.
It can help learn on what they can do better to save lives