What does the "tragedy of the commons" refer to?

Select the correct answer. which theme is evident in this excerpt from alfred lord tennyson’s narrative poem “the charge of the light brigade”? “forward, the light brigade! ” was there a man dismayed? not though the soldier knew someone had blundered. theirs not to make reply, theirs not to reason why, theirs but to do and die. into the valley of death rode the six hundred. a. the folly of ambition and greed b. the inability of humans to face death c. the heroism of unquestioning sacrifice d. the futility of obedience

Respond for free points because i don't have a question anymore.

Which topic or issue would be most appropriate for a four- to five-page research paper? teen health in the us how a friend recovered from anorexia national eating disorders association teen athletes who suffer from eating disorders