Question: The Boudin Bakery Tour is hosted by a bakery based in which city ?

Context paragraphs:
Mother's Cookies: Mother's Cookies is a brand that originally had a bakery based in Oakland, California, that operated from 1914 to 2008.  A sister company, Archway Cookies of Battle Creek, Michigan, was founded in 1936.  Both Mother's Cookies and Archway declared bankruptcy in 2008.  At its height, the company distributed cookies throughout the United States, and was one of the leading cookie makers in the country.  The Kellogg Company acquired the Mother's Cookies trademark and recipes in December 2008 and brought the brand back to West Coast grocery store shelves on May 14, 2009.

Sugar Bowl Bakery: Sugar Bowl Bakery is a bakery based in Hayward, California.  It is one of the largest food production companies in the San Francisco Bay Area.  The company was founded in 1984, when Vietnamese immigrant Andrew Ly and his four brothers bought a San Francisco donut shop.  In addition to retail products, the company serves hotels, and Costco, and has an extensive production and distribution capacity in the Northern California region.  The bakery has been praised by President Barack Obama, as an example of a successful immigration story, saying "[This is] what America is about ... the place where you can reach for something better if you work hard."

Dominique Ansel: Dominique Ansel (born 1978) is a French-born pastry chef and owner of Dominique Ansel Bakery in New York City.  Since its opening in November 2011, the chef's eponymous bakery has become known for many signature creations including the Cronut, Cookie Shot, DKA (Dominique's Kouign Amann), Frozen S'mores, and many other pastries.  He is also the chef/owner of Dominique Ansel Kitchen in New York, Dominique Ansel Bakery Japan in Tokyo and Dominique Ansel Bakery London.  In April 2017, he was named the World's Best Pastry Chef by the World's 50 Best Restaurants awards, making him the youngest and only U.S.-based chef to be awarded the honor.

The Bakery Tour: The Boudin Bakery Tour, which opened with Disney California Adventure on February 8, 2001, is a tour that shows how sourdough bread is made, hosted by Boudin Bakery.

Boudin Bakery: Boudin Bakery (Anglicized pronunciation: "boo-DEEN") is a bakery based in San Francisco, California, known for its sourdough bread (trademarked as "The Original San Francisco Sourdough").  It was established in 1849 by Isidore Boudin, son of a family of master bakers from Burgundy, France, by blending the sourdough prevalent among miners in the Gold Rush with French techniques.

Pinkus Müller: Pinkus Müller is a German brewery based in the Northern Germany town of Münster.  The Pinkus-Müller brewery traces its origins to the arrival of Johannes Müller (1792–1870) in Münster from his home town of Hildebrandshausen in 1816.  After marrying Friederika Cramer they opened a bakery and a brewery.  In 1866 the bakery was closed and a malthouse was opened instead.  In the following hundred years the brewery and the pub were expanded.  In 1993 a bottling plant was opened in the neighbouring city of Laer.  It is the only brewery left in Münster from original 150 breweries.

Golden Krust Caribbean Bakery &amp; Grill: Golden Krust Caribbean Bakery & Grill is a Caribbean cuisine fast food chain, and manufacturer and distributor of Caribbean food products, based in Brooklyn, New York City.

Washington Square (San Francisco): Washington Square is a park in the North Beach district of San Francisco, California, and is one of the city’s first parks, established in 1847.  It is bordered by sidewalk cafes and restaurants such as Mama's (restaurant) and the Liguria Bakery as well as the Sts.  Peter and Paul Church.  The Square is a natural community gathering place with a long history.  Festivals, free movie nights and other special events are hosted there throughout the year.

Henry S. Levy and Sons: Henry S. Levy and Sons, popularly known as Levy's, was a bakery based in Brooklyn, New York, most famous for its rye bread.  It is best known for its advertising campaign "You Don't Have to Be Jewish to Love Levy's", which columnist Walter Winchell referred to as "the commercial [sic] with a sensayuma" (sense of humor).

Takaki Bakery: Takaki Bakery Co., Ltd. (株式会社タカキベーカリー , Kabushiki-gaisha Takaki Bakery ) is a Japanese Bakery based in Hiroshima, Japan.  It was the first company of the Andersen Institute of Bread and Life group of companies.

Supporting paragraphs: The Bakery Tour Boudin Bakery
Answer: San Francisco