The correct answer to this open question is the following.
Although there are no options attached we can say the following.
The decimal system and the development of the concept of zero are considered the greatest advancements of Indian mathematicians because thos concepts came to give mathematics a whole different meaning and a series of new possibilities to be applied in the field of mathematics with practical applications such as the numeral system, mathematical operations, measures, trade, among others.
Thousands of years before the Europeans could use it, the Indians had already discovered the zero and the decimals. This shows the intelligence and focus of the people in India. These concepts spread all over the Middle East and China before arriving in Europe.
The number system in India can be traced back to the sacred book called "The Vedas," approximately in 1200 BC.
Korea was divided by the US and the USSR
the Treaty of Brest-Litovsk was a peace treaty signed on 3 March 1918 between the new Bolshevik government of Soviet Russia and the Central Powers (Germany, Austria-Hungary, Bulgaria, and the Ottoman Empire), that ended Russia's participation in World War I. The treaty was signed at Brest-Litovsk (Polish: Brześć Litewski; since 1945 Brest), after two months of negotiations. The treaty was agreed upon by the Bolshevik government to stop further advances by German and Austro-Hungarian forces. According to the treaty, Soviet Russia defaulted on all of Imperial Russia's commitments to the Triple Entente alliance
After the war, women and minorities were awarded with more rights. They were treated much better then what they had been treated like. They were treated more as equals.
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the answer is C. Poverty and disease persist in a sector society.
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