The answer is A) educated Indians seeking
self-rule. Men like Mohandas K. Gandhi who were educated in the West
began campaigning for independence after years of British rule where many
Indians were being treated unfairly. He
began to launch a campaign of independence through civil disobedience that led
to the emergence of India and Pakistan.
The one-child policy had people pay special fees as punishment for having more than one-child. This led to a large number of hidden undocumented children that were hidden to avoid breaking the law. This mostly occurred in rural areas and was a big problem for the government.
The "long march" of China was led by Mao Zedong so its C.
The correct answer is option B.
Edmond Halley correctly predicted the return of the eponymous comet Halley after he realized several sightings of a comet were in fact the same comet.
By correctly understanding Sir Isaac Newton's law of gravity and also his ideas in mathematics, Halley was able to correctly predict that the comet that now bears his name would return periodically. He did this by discovering Halley's orbit in 1716 and thus being able to predict the year of its return.