Will mark brainliest and 99 points.
Which of the following best summarized the main idea of the passage? * A. “Researchers use wind tunnels to learn more about how an aircraft will fly.”B. “Special instruments are often used to measure the force of the air on the object.”C. “NASA engineers tested ideas for the design of Ares in wind tunnels.” D. “Long after the first design work is finished, NASA can still use wind tunnels.”
