The walls (A) around the city of Quebec, which was originally a (B) fort military, still (C) stand, making Quebec (D) the only walled city in North America.

You have to keep reminding yourself that these trees are (1) _____ real and identical to their larger cousins in all respects except their size. 

Which ones of the following would be the best summary of the passage?

1.         Even reality shows provide good examples of how watching TV can be both intellectually challenging and enjoyable.

2.         The drama “24” demonstrates new trends in television in its content and, more importantly, in its complicated form.

3.         Steven Johnson’s new book addresses the popular view that TV and other pop culture products have little intellectual value.

4.         Shows such as “Survivor” have become popular mainly because people enjoy looking for patterns and solving puzzles.

5.         Steven Johnson’s new book argues that despite most people’s low opinion of TV, the complexity of its characters and plots actually presents beneficial mental challenges.