Vocabulary—Antonyms MCQ: Choose the option that is most nearly opposite to ‘‘DENSITY’’; carefully distinguish compactness and concentration from sparseness and rarity for exam-ready understanding.

Given data

• Word: density = compactness; the degree of mass per unit volume; by extension, crowding or concentration.
• Options: Rarity, Intelligence, Clarity, Brightness

Concept/Approach
We need the opposite sense of concentration or crowdedness, namely scarcity or thin distribution.

Option analysis
Rarity: infrequency or scarcity; best antonym among the options. ✅Intelligence/Clarity/Brightness: relate to mental ability or optical qualities, not the compactness measure. ❌

Verification
High traffic density vs. traffic rarity (empty roads) illustrates the contrast.

Final Answer
Rarity