In Bash, inserting 1>&2 after a command redirects

In Bash, inserting 1>&2 after a command redirects
A . standard error to standard input.
B . "Pass Any Exam. Any Time." – www.actualtests.com 19 standard input to standard error.
C . standard output to standard error.
D . standard error to standard output.
E . standard output to standard input.

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Answer: C