Respuesta :

Answer:  [A]:  " The Eiffel Tower. "

Explanation:
Consider the other answer choices:
[B]: "The Parthenon" —
       →  {ancient Greece; Athens, Greece—not  Paris, France.
[C]:  "The Crystal Palace" —{London, England—not  Paris, France.  
[D]:  "The "Pantheon" —{ancient Rome, Italy—not  Paris, France.

So, by default, the correct answer choice is:

 [A]:  "The Eiffel Towel"—
   →  which happens to be commonly known as a 'landmark/structural feature' of  Paris, France.
_________________
Note:  The question asks:
 " {Which work was the centerpiece of the 1889 Paris Exposition?}"
____
Hope this is helpful to you.
  Wishing you the best!
____

RELAXING NOICE
Relax