Insert one comma to separate the coordinate adjectives. ,
Designed by Thom Mayne and associates, the Perot Museum of Nature and
Science is an exceptional award-winning structure. The building features an
escalator housed in an unusual glass tube.

b. brooks wrote about the same type of neighborhood in which she grew up.

sorry, i just really need points. and to this question, maybe i know the answer. but i have no time now. d

c is the answer because first she would blush to make the reader wonder why which they find out in the next line.