The correct answer is D. The Spanish-American War resulted from an attempt to enfoce the principles expressed by the Monroe Doctrine.
The Monroe Doctrine, synthesized in the phrase "America for the Americans", was elaborated by John Quincy Adams and attributed to President James Monroe in 1823. It established that any European intervention in America would be seen as an act of aggression that would require intervention of the United States. The doctrine was presented by President Monroe during his sixth State of the Union Address. It was taken with doubts, at first, and then with enthusiasm. It was a decisive moment in the foreign policy of the United States. The doctrine was conceived by its authors, especially John Quincy Adams, as a proclamation by the United States of its opposition to colonialism in response to the threat posed by the monarchical restoration in Europe and the Holy Alliance after the Napoleonic wars.
The caste system in India divides its people in 4 main groups: Brahmins, priests and teachers; Kshatriyas, warriors and rulers; Vaishyas, farmers, merchants and traders; and the Shudras, labourers. This caste system isn't based on political views, but on the religious belief that each group originated from a different part of Brahma's body, the Hindu God of Creation.
India's caste system is very unfair and problematic. Three ways in which it has created social problems in the country are: 1) it prohibits people to change occupation and advance in life by making something else than what they were "born" to do; 2) it increases prejudism and discrimination towards certain groups as it doesn't let persons from different categories to mix in; and 3) it maintains a big social and economic gap between each group, which leads to violence and poverty.
Global warming. If the center of our earth weren't warming continuously or weren't as active, we would have as much global warming.
