Please re-write the question. I don't quite understand what the question says due to lack of good grammar in the sentence. Sorry! rewrite and I will answer.
Answer: The Cave required a total of 18 musicians and five video screens.<em>The correct answer is A. </em>
Explanation:
The Cave was an opera that had a total of 3 acts. The opera was first played in 1993 in Vienna. The opera was performed by the Steve Reich Ensemble. The opera had both spoken parts that were interviewed by American, Israeli, and Palestinian religious experts. There were also excerpts from the <em>story of Abraham</em> that were in the opera. Images and spoken part were displayed on the screens in the theaters where the opera were performed.