The assassination^^ like they said
Development of political parties
C. Is a Factual Statement
This one is tricky, because scientific law can explain an observation, or be used to make a prediction, but I believe that C. is the most correct of the 4 answers.
Each was a natural trading partner.
Taking a side in that conflict would have had bad consequences for the U.S., the proverbial no-win situation.
Please provide an image to the question