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How is a variable accessed from another file?

A.	The global variable is referenced via the extern specifier.	B.	The global variable is referenced via the auto specifier.
C.	The global variable is referenced via the global specifier.	D.	The global variable is referenced via the pointer specifier.
E.	The global variable is referenced via the ext specifier.

Answer and Explanation

Answer:The global variable is referenced via the extern specifier.

Explanation:
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