As Avery begins to revise his draft, he decides that he needs to better develop some of the ideas presented in the above body paragraph. Which of the following sentences provides the best development of previous ideas if inserted after sentence 4? Lilienthal's career as an aviator came to a tragic end when he crashed his glider on August 9, 1896.
Pictures of Lilienthal in flight succeeded in increasing public interest in the new field of aviation.
Lilienthal's glider is now hanging in the Smithsonian Air and Space Museum in Washington, D. C.
Lilienthal's experiments provided data regarding the lift and drag of various types of wing shapes, as well as information about weight distribution and center of gravity.

the correct answer is the following.

one of the groups i belong to is the boy scouts. this is a problem-solving group because it has tasks that we need to solve in order to other people in different activities such as the rescue of lost pets, or elder people in need.

the other group i belong to is kids pro environment, and is an information-sharing group that tries to create conscience about the risks and problems that generate pollution in our cities. we share information to other students and parents on the importance of keep our communities clean and our skies clear.  

the sentences are -

it was all just as it was in the law courts. the doctor put on just the same air towards him as he himself put on towards an accused person.