What fueled economic growth but also enflamed old rivalries and contributed to two major wars in the twentieth century? protectionism urbanization rearmament globalization

The correct answer is "rearmament". Rearmament is a business that contributed to economic growth in many countries but also, it is a driven of rivalries and a starter for wars. For instance, Germany's economic had significantly grown from 1933 to 1938 due to rearmament during Hitler's mandate. However, rearmament was also a contributor for the starting of World War II.

i believe the answer to your question is b. pay your bills early