Each sentence below has one or two blanks, each blank indicating that something has been omitted Beneath the sentence ate five, words or sets of words labeled A through E. Choose the word or set of words that, when inserted in the sentence, best fits the meaning of the sentence as a whole. 

Example: Medieval kingdoms did not become constitutional republics overnight; on the contrary, the change was ----. 

{A) unpopular (B) unexpected (C) advantageous (D) sufficient (E) gradual

 The new concert hall proved to be a ----: it was costly, acoustically unsatisfactory, and far too small. 

(AJ colossus (B) milestone (C, debacle (Dl consecration (E) fabrication