Multiple choice technology programming languages

Which of the followings can be a pattern delimiter

  1. $

  2. ^

  3. "

  4. %

  5. III and IV
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E Correct answer
Explanation

Pattern delimiters in regular expressions are non-alphanumeric characters used to bound the pattern. Both double quote (") and percent (%) are valid delimiters in several regex implementations (particularly Perl-style), as long as the delimiter doesn't appear within the pattern itself. The caret (^) and dollar sign ($) are anchors, not delimiters.

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