The answer is A because when similar fossils were found on different continents it led<u> </u><u>Alfred Wegener</u> and other scientists to believe that those continents were connected before they were separated because of continental drift.
The top ten largest countries in the world are (in order) Russia, Canada, America, China, Brazil, Australia, India, Argentina, Kazakhstan and Sudan. Therefore, the answer to your question would be Brazil, since it is the only one in South America.
Answer : The Dharmasastras
explanation : The Varna system in Dharma-shastras divides society into four varnas (Brahmins, Kshatriyas, Vaishya and Shudras). Those who fall out of this system because of their grievous sins are ostracised as outcastes (untouchables) and considered outside the varna system.