<p>1. The cuckoos are comprised of over 120 species. They are generally divided into</p><p>2. two groups: the parasitic and nonparasitic. The parasitic cuckoos replace</p>3. the neighbor's eggs with their own and let the host hatch the eggs which are>/p><p>4. almost identical in size and color to the host's eggs. The non-parasatic,</p><p>5. however, lay the eggs on their own nests and rear their own offspring. The</p><p>6. cuckoos that are arboreal are insectivorous, but the ones that lack climbing</p><p>7. flexibility are mainly carnivorous and feast on mice, snakes, birds and</p><p>8. somewhat small ground animals. Their downcurved beak is an advantage in</p><p>9. killing the prey. The yellow-billed cuckoo and the black-billed cuckoo are the</p><p>10. most common species in North America. The cuckoos are mostly light brown</p><p>11. above and dull gray below, with the exception of the tropical species that are</p><p>12. brilliantly colored. A long tail is a common trait among the</p><p>13. cuckoos.</p><p>According to the passage, the North American cuckoos are</p>
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A
brilliantly colored
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B
grayish brown all over
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C
brown above and drab gray below
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D
greenish brown above with gray patches below