Between 80 and 85 million years ago, Gondwanaland, a giant continent made up of what today is Africa, Antarctica, Australia, and South America, broke up, thus causing what is now New Zealand to become separated from the larger landmass. After the separation, any creature unable to cross a considerable distance of ocean could not migrate to New Zealand. Snakes and most mammals evolved after the separation. Thus there are no New Zealand snakes, and bats, which flew there, and seals, which swam there, were the only mammals on New Zealand when Polynesian settlers (the Maori) arrived there about a thousand years ago.
- A. Bats and seals most probably originated in New Zealand and then migrated to other parts of the world.
- B.Most mammal species were already present in Gondwanaland before it broke up, between 80 to 85 million years ago.
- C.No mammals that evolved after New Zealand separated from Gondwanaland were able to migrate to New Zealand.
- D.No mammals evolved from the animals that originally inhabited New Zealand.
- 답이 D인데, 추론의 근거를 찾기가 힘듭니다ㅜ.. 저는 Snakes and most mammals evloved after the separation을 보고 c로 골랐는데, 오답인 이유도 같이 설명해주시면 감사드리겠습니다.