The ostrich, penguin and kiwi are _ .

Correct answer: C. Flightless birds

  • A. Running birds
  • B. Migratory birds
  • C. Flightless birds
  • D. Four-toed birds

Explanation

The ostrich, penguin, and kiwi are all flightless birds. This category best captures their shared trait of being unable to fly, though they have adapted to different environments: the ostrich to running on land, the penguin to swimming in water, and the kiwi to foraging on the ground. Other options are incorrect because they either apply to only one of the birds or are not characteristic of any of them.

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