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Which one of the following is false?

  1. LALR parser is Bottom-Up parser
  2. A parsing algorithm which performs a left to right scanning and a right most deviation is RL($1$)
  3. LR parser is Bottom-Up parser
  4. In LL($1$), the $1$ indicates that there is a one symbol look-ahead
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Answer is B
There is nothing like RL(1) parsing. We have LR(1) parsing algorithm. Where L stands for left-to-right scanning of the input string and R signifies that we will get a rightmost derivation.
LALR and LR are bottom-up parsers, so A and C are true.
D is also true.
Answer:

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