Please answer the following question: Information: - Morocco (', lit. "The West"; '), officially known as the Kingdom of Morocco (', lit. "The Western Kingdom"; '), is a sovereign country located in the Maghreb region of North Africa. Geographically, Morocco is characterized by a rugged mountainous interior, large tracts of desert, and a lengthy coastline along the Atlantic Ocean and Mediterranean Sea. - Casablanca (local informal name: "Kaa") is the largest city in Morocco, located in the central-western part of the country bordering the Atlantic Ocean. It is the largest city in the Maghreb, as well as one of the largest and most important cities in Africa, both economically and demographically. - A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law. - Joseph Albert Fields (February 21, 1895 March 4, 1966) was an American playwright, theatre director, screenwriter, and film producer. - A Night in Casablanca ( 1946 ) is the 12th Marx Brothers movie , starring Groucho Marx , Chico Marx , and Harpo Marx . The picture was directed by Archie Mayo and written by Joseph Fields and Roland Kibbee . - A port is a location on a coast or shore containing one or more harbors where ships can dock and transfer people or cargo to or from land. Port locations are selected to optimize access to land and navigable water, for commercial demand, and for shelter from wind and waves. Ports with deeper water are rarer, but can handle larger ships. Since ports throughout history handled every kind of traffic, support and storage facilities vary widely, may extend for miles, and dominate the local economy. Some ports have an important military role. - Africa is the world's second-largest and second-most-populous continent. At about 30.3 million km (11.7 million squaremiles) including adjacent islands, it covers 6% of Earth's total surface area and 20.4 % of its total land area. With 1.1 billion people as of 2013, it accounts for about 15% of the world's human population. The continent is surrounded by the Mediterranean Sea to the north, both the Suez Canal and the Red Sea along the Sinai Peninsula to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. The continent includes Madagascar and various archipelagos. It contains 54 fully recognized sovereign states (countries), nine territories and two "de facto" independent states with limited or no recognition. - Part of the AFI 100 Years... series, AFI's 100 Years...100 Stars is a list of the top 50 greatest screen legends in American film history, which included 25 male and 25 female stars. The list was unveiled by the American Film Institute on June 15, 1999, in a CBS special hosted by Shirley Temple, with 50 current actors making the presentations. - The Marx Brothers were an American family comedy act that was successful in vaudeville, on Broadway, and in motion pictures from 1905 to 1949. Five of the Marx Brothers' thirteen feature films were selected by the American Film Institute (AFI) as among the top 100 comedy films, with two of them ("Duck Soup" and "A Night at the Opera") in the top twelve. They are widely considered by critics, scholars, and fans to be among the greatest and most influential comedians of the 20th century. The brothers were included in AFI's 100 Years...100 Stars list of the 25 greatest male stars of Classic Hollywood cinema, the only performers to be inducted collectively. - Vaudeville is a theatrical genre of variety entertainment. It was especially popular in the United States and Canada from the early 1880s until the early 1930s. A typical vaudeville performance is made up of a series of separate, unrelated acts grouped together on a common bill. Types of acts have included popular and classical musicians, singers, dancers, comedians, trained animals, magicians, strongmen, female and male impersonators, acrobats, illustrated songs, jugglers, one-act plays or scenes from plays, athletes, lecturing celebrities, minstrels, and movies. A vaudeville performer is often referred to as a "vaudevillian". - The Maghreb (or ; literally "sunset"; ', "the Arab West" previously known as Barbary Coast, derived from Berber), or the Greater Maghreb ("al-Maghrib al-Kabr"), is usually defined as much or most of the region of western North Africa or Northwest Africa, west of Egypt. The traditional definition as the region including the Atlas Mountains and the coastal plains of Morocco, Algeria, Tunisia, and Libya, was later superseded, especially following the 1989 formation of the Arab Maghreb Union ( ), by the inclusion of Mauritania and of the disputed territory of Western Sahara (mostly controlled by Morocco). During the Al-Andalus era in Spain (7111492), the Maghreb's inhabitants, Maghrebis, were known as "Moors"; the Muslim areas of Spain in those times were usually included in contemporary definitions of the Maghrebhence the use of "Moorish" or "Moors" to describe the Muslim inhabitants of Spain in Western sources. After reading the paragraphs above, we are interested in knowing the entity with which 'a night in casablanca' exhibits the relationship of 'genre'. Find the answer from the choices below. Choices: - comedy - economy - entertainment - family - genre - history - law - march - variety - various - vaudeville - western
A:
comedy