Actually, neither of these options is correct. Costa Rica has the best medical and education in most of Latin America.
Answer:
Oil
Explanation:
When overproduction occurred, it create a situation when the stock of the products far outnumbered the amount of people who are wiling to buy it. As a response, sellers started to reduce the price of the oil in order to make consumers more interested to buy it.
This caused a massive fall in oil price during the 1930s. Before the over production, the cost of oil at that time was around $ 1.88 / Barrel. After the overproduction, it became around 65 cents per barrel .
The answer would be Thomas Jefferson
In the light of your question I think it was a Russian success and the US is yet to achieve such achievements. During that time when the Cold War is in the climax between the two superpowers both competed not only in arms race but technological advances trying to outwit each other. The Russians gain the upper hand because they were able to make the things stated above before the United States but in the end the US was able to make also such things in their own ways and successfully outwitting the USSR in economy and world power.