Which of the following code create a reference for a hash?

A) $ref = \$foo;

B) $ref = \%ENV;

C) $ref = \@ARGV;

D) $ref = \&PrintHash;

Correct Answer : $ref = \%ENV;

Explanation : You can create a reference for any hash by prefixing it with a backslash as follows - $ref = \%ENV;

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