The correct answer is **isn't it** (Option 3).
**Comprehensive Derivation:**
The correct answer is "isn't it?''
Explanation & Key Takeaways:
• The verb in the question tag ("isn't") matches in tense (present) and in form with the verb in the main sentence ("is").
• The pronoun "it" in the question tag corresponds to the subject of the main sentence ("That").
Therefore, the correct answer is "option 3".
**Option Elimination:**
• **Option 1 (isn't that)**: Incorrect distractor.
• **Option 2 (weren't that)**: Incorrect distractor.
• **Option 3 (isn't it)**: Correct Answer; accurate according to canonical reference.
• **Option 4 (wasn't that)**: 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: isn't it corresponds to Option (3).
The correct answer is **isn't it** (Option 3).
**Comprehensive Derivation:**
The correct answer is "isn't it?''
Explanation & Key Takeaways:
• The verb in the question tag ("isn't") matches in tense (present) and in form with the verb in the main sentence ("is").
• The pronoun "it" in the question tag corresponds to the subject of the main sentence ("That").
Therefore, the correct answer is "option 3".
**Option Elimination:**
• **Option 1 (isn't that)**: Incorrect distractor.
• **Option 2 (weren't that)**: Incorrect distractor.
• **Option 3 (isn't it)**: Correct Answer; accurate according to canonical reference.
• **Option 4 (wasn't that)**: 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: isn't it corresponds to Option (3).
Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer.
Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer.
Core mnemonic rule: isn't it corresponds to Option (3).
Core mnemonic rule: isn't it corresponds to Option (3).
**Option Elimination:**
• **Option 1 (isn't that)**: Incorrect distractor.
• **Option 2 (weren't that)**: Incorrect distractor.
• **Option 3 (isn't it)**: Correct Answer; accurate according to canonical reference.
• **Option 4 (wasn't that)**: Incorrect distractor.
**Option Elimination:**
• **Option 1 (isn't that)**: Incorrect distractor.
• **Option 2 (weren't that)**: Incorrect distractor.
• **Option 3 (isn't it)**: Correct Answer; accurate according to canonical reference.
• **Option 4 (wasn't that)**: Incorrect distractor.