Answer: C) people define themselves by their group affiliations.
Explanation: Social identity can be simply defined as the perception of an individual on who they are based on the membership they belong to.
Social identity theory is a theory about (in group) who we are and (out group) who they are, the in group will always look for issues to use against the out groups, there by tarnishing the image of the out groups and enhancing theirs.
So option (C); people define themselves by their group affiliations best illustrates social identity theory.
The correct answer is the first one
Answer: Foreign Internal Defense
Explanation: Foreign Internal Defense could simply be defined as the joint effort used in combating unrest in a foreign country. The foreign country being the Host Nation is aided through external support provided by other countries through the provision of a joint, synchronized effort of civilian, the military and other government agencies providing multidisciplinary support in a bid to assist the Host Nation of getting rid of unrest such as subversion, terrorism, banditry and other forms of threat to National security.
Answer:
Manifest destiny is a belief that many people in America at that time held. This belief made them convinced that they're somehow destined by God to spread democracy and capitalism to the rest of North America. The people at that time belief that it's the only correct system to ensure the freedom of all citizens.
But due to the large size of its territory, it is difficult to reach many different areas in north America. Railroad companies already exists. But, most of them only operates within one state. This problem was somehow solved by the creation of Transcontinental Railroad.
The transcontinental railroad was built with the intention to create a pathway connect all part of North America. It is an important infrastructure for the American people to create settlements in every corner of the country. This helped them spread the ideologies as intended in Manifest Destiny.