Answer:
Correct answer is C. oil
.
Explanation:
Option C is the only correct option as reasons for this drastic drop were pretty simple. During the 1980s the need for oil has been reduced, while on the other side the production has increased. Because of that the prices went down as it was impossible to sell all the oil that we had on the market.
All other options are false as the prices of this products didn't change drastically in that period,
Moving his fleet into Japanese waters and opening up trade between Japan and the West by threatening to shell the towns--so he is known for "gunboat diplomacy."
Political Bosses were the leaders of the political machines, they grew wealthy because they assigned government contracts asking for favors like votes or promoting campaign on their favor, they also controlled financing of campaigns to later ask for recompense. By doing this they reached position in the local government of cities, counties and states and this way concentrated wealth around corruption.
In order to eliminate piles, you must "<span>b. Keep flat surfaces clear" since if you start to accumulate things on a surface, especially things like letter, you will soon have a pile. </span>
