I believe the answer is: b. agriculture
In the 1920s, the national banks made it far too easy for people to obtain loan to buy lands that is used for agricultural purposes. This made the supply of the agricultural product to far surpassed the demand, which become one of the things that contribute to the economic crisis in 1920s.
The most educated people in medieval societies were priests and nuns. Most schools were located within monasteries and unlike regular people who chose whether or not to get at least some education, priests and nuns often had to educate themselves because of sacred texts. Many of them even worked as copying machines and had to rewrite books.
It was "manufacturing" that declined steadily during the 1980s and 1990s, mostly due to the fact that many of these jobs were being sent overseas. The Internet also played a heavy role.
Answer:
(See explanation for further details)
Explanation:
Magellan proposed to King Charles I of Spain and V of the Holy Roman Empire that a journey to the Spice Island was possible without going across the Portuguese side of the world, established by the Tordesillas Treaty.