Ideally, sustainable development should a. put the protection of the environment ahead of human needs. b. provide for human needs at the expense of the environment. c. use more natural resources to make goods to meet human needs. d. preserve ecosystems while providing for human needs.

The correct answer that would best complete the given statement above would be option D. Ideally, sustainable development should preserve ecosystems while providing for human needs. Both the environment and the needs of the human should be treated and cared equally because without the environment, humans will not survive. 

Pretty bad i would assume.