The Chorus (French: Les Choristes) is a 2004 European drama film directed by Christophe Barratier. Co-written by Barratier and Philippe Lopes-Curval (fr), it is an adaptation of the 1945 film A Cage of Nightingales (La Cage aux rossignols), which in turn was adapted by Noel-Noel and Rene Wheeler from a story by Wheeler and Georges Chaperot. The story is based on the origins of the boy choir The Little Singers of Paris who were the main interpret in A Cage of Nightingales. The original French title translates as ''The Choristers'' or ''The Choirboys'', not ''The Chorus''.

See options at the end. Can we conclude that is les choristes based on a true story?

Options: (a). no; (b). yes;
(b).