Answer:
For most countries, the answer is A.
Step-by-step explanation:
B, C, and D never hold true but E is sometimes the case. An example of the first would be a previous Soviet nation, such as Kyrgyzstan, who has both Kyrgyz (the language of the Native people) and Russian (the language of the Russians who controlled them and continue to live there). The languages are used for different purposes, as well.
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