challenge: What was the primary reason Adrian Maben chose to film Pink Floyd at the Amphitheatre in Pompeii?
  
  A. To showcase the band's music over images of famous paintings
  B. To capture the band's performance in front of a live audience
  C. To document the band's experience of filming outside a standard rock concert setting
  D. To utilize the silence and natural ambient sounds of the deserted ruins as a backdrop
  Answer: 