Question: Which film director is also a sound designer, Serge de Poligny or Ric Viers?

full_context: Document 1: Perry Robertson: Perry Robertson is an American sound editor, supervising sound editor, sound mixer, composer and musician, who is known for doing major motion pictures such as Black Hawk Down, Juno, The Bourne Identity, Up in the Air, John Rambo and Thank You For Smoking.
Document 2: Le Beau Serge: Le Beau Serge (] , meaning "Handsome Serge") is a French film directed by Claude Chabrol, released in 1958. It has been cited as the first product of the Nouvelle Vague, or French New Wave, film movement. The film is often compared with Chabrol's subsequent film "Les Cousins", which also features Jean-Claude Brialy and Gérard Blain.
Document 3: Richard McGuire: Richard McGuire (born 1957) is an illustrator, graphic designer, comic book artist, animator, children's book author, musician, and toy designer. His illustrations have been published in the New York Times, The New Yorker, Le Monde, and other publications. His short story "Here" is likely the most lauded comic book story from recent decades. He is a founding member and bassist for the band Liquid Liquid. His bass line from the song ""Cavern"" is considered one of the most sampled bass lines of all time.""
Document 4: Jeremy Price: Jeremy Price is a sound designer and sound editor who has been prolific in television show production and also the film industry for over three decades. Recently Price has been the supervising sound editor on such films as "10,000 B.C.", "Alien vs. Predator", and "Free Jimmy".
Document 5: Jay Rifkin: Rifkin co-founded the company Media Ventures with Hans Zimmer, a childhood friend. As CEO of the company from 1988, Rifkin partnered with Zimmer to produce and to compose. Media Ventures is a diverse entertainment group that includes music, new media, film and television. The partnership earned them numerous awards and nominations, including Academy Award nominations, for the film scores of "Driving Miss Daisy", "Rain Man" and "The Lion King". After the success of "The Lion King", Rifkin conceived and produced the platinum-selling follow-up album "Rhythm of the Pride Lands".
Document 6: Ric Viers: Ric Viers (born 1973) is an American sound effects producer. He has also worked as a sound designer, film director, screenwriter, and author.
Document 7: Jean-Pol Fargeau: Jean-Pol Fargeau is a French screenwriter and frequent collaborator of director Claire Denis. With Denis, he co-wrote "Chocolat" (1988), "Beau Travail" (1999), and "35 Shots of Rum" (2008) and "Bastards" (2013) among others. As of 2015, Fargeau and Denis are writing their first English-language film with novelist Zadie Smith and Smith's husband, novelist and poet Nick Laird; the film is a science-fiction piece set in space.
Document 8: Serge de Poligny: Serge de Poligny (1903–1983) was a French screenwriter and film director.
Document 9: Sergio Leone: Sergio Leone (] ; 3 January 1929 – 30 April 1989) was an Italian film director, producer and screenwriter, credited as the inventor of the "Spaghetti Western" genre.
Document 10: Éric Rohmer: Jean Marie Maurice Schérer or Maurice Henri Joseph Schérer, known as Éric Rohmer (] , 21 March 192011 January 2010), was a French film director, film critic, journalist, novelist, screenwriter and teacher.
Document 11: Jean Renoir: Jean Renoir (] ; 15 September 1894 – 12 February 1979) was a French film director, screenwriter, actor, producer and author. As a film director and actor, he made more than forty films from the silent era to the end of the 1960s. His films "La Grande Illusion" (1937) and "The Rules of the Game" (1939) are often cited by critics as among the greatest films ever made. He was ranked by the BFI's "Sight & Sound" poll of critics in 2002 as the fourth greatest director of all time. Among numerous honors accrued during his lifetime, he received a Lifetime Achievement Academy Award in 1975 for his contribution to the motion picture industry. Renoir was the son of the painter Pierre-Auguste Renoir. He was one of the first filmmakers to be known as an "auteur".
Document 12: List of songs written by Ravi: Ravi is a South Korean rapper, songwriter and producer, signed under Jellyfish Entertainment. He began his career as a rapper in 2012 in the South Korean boy group VIXX, and later formed VIXX's first sub-unit VIXX LR with band mate Leo in 2015. Ravi's songwriting career began with his participation in co-writing VIXX's debut single "Super Hero". As of November 2016 with the release of "VIXX 2016 Conception Ker", Ravi has contributed to the writing and composing of over 46 songs recorded by VIXX. Ravi is widely known for his participation of composing and songwriting rap portions for the group as well as lyrics and music.
Document 13: André Téchiné: André Téchiné (] ; born 13 March 1943) is a French screenwriter and film director. He has a long and distinguished career that places him among the best post-New Wave French film directors.
Document 14: Jean-Daniel Pollet: Jean-Daniel Pollet (] ; 1936–2004) was a French film director and screenwriter who was most active in the 1960s and 1970s. He was associated with two approaches to filmmaking: comedies which blended burlesque and melancholic elements, and poetic films based on texts by writers such as the French poet Francis Ponge.
Document 15: Rick Heinrichs: Richard Heinrichs is an American production designer, effects artist, art director and film producer. He is well known for his work on the "Pirates of the Caribbean" series, Ang Lee's "Hulk" and "The Nightmare Before Christmas". He started his career on visual effects on the other world sequence in "The Watcher in the Woods", Tim Burton's "Hansel and Gretel" and "Vincent" to later work on "Alfred Hitchcock Presents" and "". He also worked on "Frankenweenie".
ground_truth: Ric Viers