1. The answer is b.
Catherine the Great and Frederick the Great were called enlightened despots because, during their rule, they took advantage of the enlightenment movement going on at that time and applied the teachings to their manner of ruling. They realized that in order for their nations to progress, they should make reforms that will encompass all levels of society including those who are not noble.
2. The answer is d.
Although both revolutions are based on attaining political reforms from colonizers and monarchies, one remarkable difference is that in the French Revolution, it started among the lower to middle classes who are burdened by the taxes imposed by the ruler, Louis the XVI in a desperate attempt to lift France out of bankruptcy.
3. The answer is b.
The industrial revolution allowed for mass production of products that also allowed for more trade to occur.