Why were the early airplanes with flapping birds unsuccessful (Wordly Wise 9E book 5) (make sure answer has wordly wise word)

i think it is called the president's cabinet.

in my opinion, the correct answer is  b. hamadi chooses to comfort tracy, a total stranger to him, when she becomes upset. hamadi doesn't have any particular reason to be close to susan or tracy, but he nevertheless takes interest in them and spends time with susan.