Choose the appropriate word for the phrase.
'That which cannot be removed or rubbed off.'

The correct answer is Option B (indelible).

Key Points:
• Concept: Vocabulary and One Word Substitutions.
• Explanation: 'Indelible' means making marks that cannot be removed, erased, or washed away.
• Other Terms:
• Irreparable: Impossible to repair.
• Inevitable: Certain to happen / unavoidable.
• Infallible: Incapable of making mistakes or failing.
• Official Key: Option 2 ('indelible') is the official correct option.
• Key Takeaway: Remember: 'Indelible' describes marks or ink that cannot be erased or removed.