The correct answer is **Forgetting** (Option 4). **Comprehensive Derivation:** The correct answer is 'Forgetting'. Explanation & Key Takeaways: • The word 'reminiscing' refers to the action of recalling past experiences or events. It is the act of remembering and often reflecting on something from the past with fondness. ('यादें ताज़ा करना'). • For example, he spent the evening reminiscing about his college days with his old friends. • Forgetting refers to the action of failing to remember something. It is the act of losing or dismissing something from the mind. ('भूल जाना'). • For example, I've been trying to learn French, but I keep forgetting the words. • Therefore, the correct answer is "Option 4". Related Concepts: • 'Disregarding', refers to the action of ignoring something or not considering it. ('अनदेखा करना'). • 'Losing', refers to the action of no longer possessing something because you do not know where it is, or because it has been taken or destroyed. ('खो देना'). • 'Ignoring', refers to the action of not paying attention to something or someone. ('ध्यान नहीं देना'). **Option Elimination:** • **Option 1 (Disregarding)**: Incorrect distractor. • **Option 2 (Losing)**: Incorrect distractor. • **Option 3 (Ignoring)**: Incorrect distractor. • **Option 4 (Forgetting)**: Correct Answer; accurate according to canonical reference. **Exam Trap:** Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer. **Memory Booster:** Core mnemonic rule: Forgetting corresponds to Option (4).