Read the paragraph and then select the correct answer below.

within the branches of a eucalyptus tree in australia lives one of god's special creations, the cuddly koala. he is often called a koala "bear," but he is not a bear. he is a marsupial or a "pouched" animal. the koala is native only to australia. he has large bushy ears, a black nose, and no tail. he would make a nice pet, but he rarely survives in captivity. once hunted for his fur, the koala now enjoys government protection.

"he has large, bushy ears, a black nose, and no tail."

this sentence is an example of a(n)

introductory sentence
support sentence
quotation
topic sentence
summary sentence
transitional device