The correct answer is **had tidied up , washed** (Option 3). **Comprehensive Derivation:** The correct answer is - "had tidied up, washed" Explanation & Key Takeaways: • From the given options, the most appropriate answer is "had tidied up, washed". • In the given sentence, Combination of 1st action(Simple past Tense) and 2nd action(Past Perfect Tense). • Eg. I had seen him before he stopped his car. • Sentence of "she" is 1st action and sentence of 'Meera' is 2nd action. • Option 3 makes the right pair of the combination. • Thus, Option 3 is correct option. Correct Sentence - After Meera had tidied up the room, she washed the floor. **Option Elimination:** • **Option 1 (tidied up , washes)**: Incorrect distractor. • **Option 2 (tidies up , has washed)**: Incorrect distractor. • **Option 3 (had tidied up , washed)**: Correct Answer; accurate according to canonical reference. • **Option 4 (has tidied up , washed)**: Incorrect distractor. **Exam Trap:** Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer. **Memory Booster:** Core mnemonic rule: had tidied up , washed corresponds to Option (3).