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Which one of the following kinds of derivation is used by LR parsers?
1. Leftmost
2. Leftmost in reverse
3. Rightmost
4. Rightmost in reverse

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Correct Answer - Option 4 : Rightmost in reverse

 Parser

 Derivation

 LR parsers or Bottom-up Parsers 

 Rightmost reverse Derivation 

 LL parsers or Top-down Parsers

 Leftmost Derivation

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