Q. Match all items in Group 1 with correct options from those given in Group 2. List I List II**spaceP. Regular Expression 1. Syntax analysis**spaceQ. Push down automata 2. Code Generation**spaceR. Dataflow analysis 3. Lexical analysis**spaceS. Register allocation 4. Code optimization

• (A) P-4, Q-1, R-2, S-3
• (B) P-3, Q-1, R-4, S-2
• (C) P-3, Q-4, R-1, S-2
• (D) P-2, Q-1, R-4, S-3