The answer is c. Third estate
It's where only a few people get to rule someplace.
You didn't provide a list of choices, but I'll provide a key example: The US intervention in Korea. In Korea, when communist forces from the North invaded the South in 1950, the United States intervened (with United Nations backing), battled to keep South Korea free and democratic, and were able to do so. The Soviet Union did not play an active, open role in that war, but did covertly supply <span>material services to the North Korean side, as well as Soviet pilots and aircraft. Keeping communism from spreading in Korea was a way the US was practicing its policy of containment over against Soviet communist influence.</span>
The arrest of a criminal suspect.
If you've ever watched a television crime drama, you've heard the "Miranda warning" -- or at least the beginning of it: "You have the right to remain silent. Anything you say can and will be used against you in a court of law. You have the right to an attorney ...." There's a couple more sentences to the warning, but TV shows often cut to the next scene before hearing the arresting officer finish their recitation of the full warning.
Miranda v. Arizona was a Supreme Court case decided in 1966. Ernesto Miranda was accused of kidnapping and raping a woman. He confessed to the crime when interrogated by police, but attorneys argued that he did not fully understand his 6th Amendment rights. After the decision in Miranda v. Arizona, it has become standard procedure in all arrests that the arresting officers must clearly state the accused person's rights -- their "Miranda rights," as they have become known.