After the Napoleonic Wars, the Portuguese people demanded democratic reforms, including major restrictions on the power of monarchs. Together with information in the passage, this fact most clearly indicates that:

Due to wars and worse financial situations.

Explanation:

The fact clearly indicates that the monarchs failed to do work for the prosperity of people of Portuguese. The monarchs started wars to gain power in the region which causes severe damage to humanity as well as the financial conditions of the country and its people. So that's why the Portuguese people were against of monarchs and demanded democracy in the country where the people elect their leader.  

c-three

explanation:

legislative, executive and judicial

payments were made after the 1940s.

in the 1980s, a commission held investigations and made recommendations.