A good summary of a passage is not too broad or too specific. A summary that is too broad could encompass and describe a much wider range of topics than the passage actually discusses. A summary that is too specific will only relate to one of the passage's points. A good test to use is to consider whether the summary describes something relevant to each and every paragraph in the passage. If certain paragraphs don't relate to the summary at all, but others do, the summary is likely too specific to be the best one.

One way to approach a summary question is to consider how you would describe the passage to a friend who asked you what you just read. For this passage, you might say that it was about New Zealand, the kiwi, and the effects that humans bringing rabbits and stoats to the island have had. Notice that you wouldn't necessarily mention that New Zealanders are now trapping and hunting stoats using various methods—that's a detail that only pertains to one paragraph and likely wouldn't be included in a summary of the entire passage. Imagining you're describing the passage to a friend in a sentence or two can help you avoid including unnecessary detail.

Let's now look at the answer choices. "Kiwis are bound to be driven to extinction eventually" doesn't match the point of the passage. While the author discusses how stoats have reduced the kiwi's population, at no point does the author claim that the birds will necessarily be driven to extinction. "Humans have caused a lot of problems in New Zealand" and "Interfering in any environment is a bad idea, no matter how good of an idea it might seem" are both too general to be the best answer. Humans may have caused non-environmental problems in New Zealand, too, and it's possible that interfering in an environment in some way could be a good thing. We would at least need to see more evidence than the one narrative the passage provides to conclude that it's always a bad idea. The answer choice "By bringing rabbits to New Zealand, European colonists altered the natural balance of the environment" doesn't pass the paragraph test described earlier. The statement certainly describes the paragraphs that talk about the importation of rabbits, but what about the other paragraphs that talk about the stoats and kiwis? It doesn't reflect the point of those.

The best answer choice is "Human interference in New Zealand’s environment has caused problems and harmed the kiwi, a native bird." The focus on the kiwi specifically is appropriate, because before we hear about the environmental problems the European colonists caused in New Zealand, we learn about the kiwi. This is the best answer.

This question is asking for text evidence from the passage. In the third paragraph, the author explains how George Crum initially created the potato chip as a joke. “Though chef George Crum responded with the chips as a joke, they quickly became a favorite around the world!”