The answer correct answer is C
Answer:
b. language
Explanation:
A language is a system of communication used by people to express their ideas, it consists of a set of sounds and written symbols that a social group understands.
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Difference is direction:
90 degrees north latitude---is the North Pole---the furthest point North of the equator.
90 degrees south latitude--is the South Pole--the furthest point South of the equator.