What caused the need for direct democracy to the people during the progressive era?

pt 2
define and explain the impact of the following political reforms in complete sentences: recall, referendum and initiative

Which act of the conquistador pizarro was crucial in overthrowing the inca? a. the destruction of the ancient inca city, machu picchu b. the siege of the inca capital near the cuzco valley c. the execution of the last inca ruler, atahualpa d. the unexpected deaths of 3 million inca warriors e. the murder of former inca emperor, huascar