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What is the most essential purpose of parentheses in regular expressions?

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What is the most essential purpose of parentheses in regular expressions? (a) Define pattern matching techniques (b) Define subpatterns within the complete pattern (c) Define portion of strings in the regular expression (d) matching the complete string This question was addressed to me during an interview. I want to ask this question from Pattern Matching and Regular Expressions topic in portion Classes and Modules in JavaScript of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

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The correct option is (b) Define subpatterns within the complete pattern The best explanation: When a regular expression is successfully matched against a target string, it is possible to extract the portions of the target string that matched any particular paranthesized subpattern. The essential purpose of parantheses in regular expressions is to define subpatterns within the complete pattern.

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