Oligopoly is a state of limited competition, in which a market is shared with a small number of producers or sellers. The most clear example of this is the second option.
In the smarphone business, the operating system market is dominated by IOS and Android and it's almost impossible for a new software provider to enter the marker and be successful at it.
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Sam Houston was removed from his position because he refused to swear loyalty to the confededracy
The sociological imagination is the ability to see things socially and how they interact and influence each other. To have a sociological imagination, a person must be able to pull away from the situation and think from an alternative point of view.
I believe that it is C) deka. I think this because deci is worth .1, and milli is worth .001. Deka is worth 10.