Explanation:

- The sentence talks about conservation, preservation, and rejuvenation in relation to sustainable development.

- The word "superficial" means something on the surface or shallow.

- It seems something deeper than superficial is needed for sustainability.

- ? Option 5: Intrinsic - This means essential or inherent, fitting the context of sustainable development.

- Option 1: Extrinsic - External or not inherent, opposite of what is implied.

- Option 2: Incidental - Happening as a minor part of something else, doesn't convey depth.

- Option 3: Native - Innate or natural but often location or origin-specific.

- Option 4: Acquired - Obtained or developed, not a natural part.

- The correct answer makes the sentence suggest these elements are central to development.

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