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Mathematics
OpenStudy (anonymous):

The mathematical statement 4 C A means: A) 4 is a subset of A B) 4 is an element of A C) 4 is the intersection of A D) all of the above

OpenStudy (anonymous):

\[4\subset A\]Means that 4 is a subset of A.

OpenStudy (anonymous):

\[4\in A\]Means that 4 is an element of A. And about the intersection, it can't be represented in OpenStudy's equation editor but it would look like {4} n A. (Your answer is A)

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