Final answer:
Birds have distinctive characteristics such as oviparity, air sacs, and lightweight bones for flight.
Explanation:
Birds are not viviparous, meaning they do not give birth to live young, making option A) incorrect. Birds lay eggs and are therefore oviparous. Additionally, birds have high and constant body temperature, so option C) is a characteristic that they do possess. Birds have a unique respiratory system with air sacs that aid in efficient oxygen exchange, and their bones have air cavities making them lightweight for flight, which is why options D) and E) are also features of birds.
Learn more about Characteristics of Birds here:
https://brainly.com/question/43266509