Birds cause a lot of damage to airplanes every year. To study this problem, the U. S. Air Force invented a chicken cannon. Air Force scientists use the cannon to shoot chicken bodies at airplanes in controlled tests. Then they analyze the damage the chicken bodies caused. Evaluate this model. In what way do you think it is helpful? What are some of its limitations?

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.

what is the actual question though?

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.