Answer:
The correct answer is:
d. Cocaine, the first topical anesthetic drug, was introduced in 1880.
Explanation:
It is certainly true that Cocaine was introduced in the medical field for its anesthetic use in 1880, nevertheless it was not the first topical anesthetic drug used by medicine. The first discovery about anesthetic purposes was in 1844 with the use of nitrous oxide. Later on, ether was introduced to the field of anesthetics in 1846, and finally specialists talked about chloroform in 1847 before the later use of cocaine as anesthesia in the medical spheres.
During half the 1800s, the south economy relies on the plantation system. Thus the correct answer is D.
<h3>What is the economy?</h3>
An economy of the country is defined as the production and consumption of goods taking place in a country that determines the purchasing parity of individuals and the flow of cash in the market.
The plantation system mainly refers to agricultural activities where crop production will be done and crops sells in the market. Mainly cotton was the most profitable for selling in the market.
The cost invested in doing plantation was lower than the profit achieved. Therefore, option D is appropriate.
Learn more about the economy, here:
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A map is visual representation of an area Wether real or imaginary
