Discussion

Explanation:

The question talks about greenness hence we need to focus on only that part, with this and through elimination technique, we can get the answer. Option 1 and 3 are out of context and hence can be easily eliminated. Because as per Option 1 is increasing CO2, the idea of greenness does not make any sense. And in Option 3, there is a mention of ‘violent crimes’ which has no link to greenness. Now in Option 2 the high cost of utilities, also has no relation to the greenness.
Hence, the correct answer is option 4.

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