Answer:
There are three main reasons why the Spanish were able to conquer and colonize the Americas: Disease. ... While conquistadors like Hernan Cortes in Mexico and Francisco Pizarro had great weapons and strategies, their greatest ally was disease. Better weaponry.
What years and what century?
It should be 1929 - 1932 because that's when it dropped the most. All of the other choices have sections where it rises back up.
The answer is B. Both predominantly painted wall panels.
democracy, where everyone elects a leader