Question: Cathryn Micho wrote a novel that was published by a company headquartered in New York City, that is a subsidiary of what?

Context articles: Monroe Mendelsohn Research
Cathryn Michon
24/7 Media
LGBT culture in New York City
HarperCollins
Gerber Products Company
Ben Shaoul
T&amp;M Protection Resources
Maurice Bernard Mitchell
Studio One (company)

Monroe Mendelsohn Research (MMR), Inc. (and its subsidiary Mendelsohn Media Research, Inc.) was an internationally recognized, full-service marketing and media research company headquartered in New York City.
 In May 2008, the company was acquired by the Ipsos Group and eventually merged into their MediaCT practice.
 Founded by Monroe Mendelsohn in 1958 to provide marketing consultation and conduct custom marketing research surveys, the company expanded beyond the custom research services it had initially been providing and now syndicates one of America’s well-known, respected and innovative media surveys, now known as The Ipsos Mendelsohn Affluent Survey.
 This syndicated survey is used by hundreds of advertisers, advertising agencies, and the media (magazines, newspapers, cable television networks, etc.) in their communications planning and buying activities.
Cathryn Michon is a Los Angeles-based filmmaker, actress, writer and stand-up comic with numerous accolades for writing and film.
 She has been featured at the Montreal Comedy Festival, the Toyota Comedy Festival and the Marshall’s Women in Comedy Festival.
 Her touring stand-up performance "The Grrl Genius Club", as well as a subsequent novel sharing the same name, "The Grrl Genius Guide to Life" (HarperCollins, July 2001), lead to a television hosting stint on AMC's similarly titled "Grrl Genius at the Movies" and a second novel entry titled "The Grrl Genius Guide to Sex with Other People" (St. Martin's Press, January 2004), all garnering positive receptions nationwide.
24/7 Media, formerly 24/7 Real Media is a technology company headquartered in New York City and 20 offices in 12 countries, specializing in Digital Marketing.
 It provides new type of digital technology marketing solutions for publishers, advertisers and agencies globally.
 It was formerly listed as "TFSM" on the NASDAQ stock exchange.
 The company was purchased by WPP plc in 2007 for $649 million.
 David J. Moore is the Chairman, Founder & CEO.
 He also served as chairman of the Interactive Advertising Bureau.
 In December, 2013, 24/7 Media announced it would merge with GroupM subsidiary, Xaxis.
New York City has one of the largest and most prominent LGBT populations in the world.
 Brian Silverman, the author of "Frommer's New York City from $90 a Day", wrote the city has "one of the world's largest, loudest, and most powerful" LGBT communities" and "Gay and lesbian culture is as much a part of New York's basic identity as yellow cabs, high-rises, and Broadway theater."
 LGBT Americans in New York City constitute by significant margins the largest self-identifying lesbian, gay, bisexual and transgender communities in the United States, and the 1969 Stonewall Riots in Greenwich Village are widely considered to be the genesis of the modern gay rights movement.
 As of 2005, New York City was home to an estimated 272,493 self-identifying gay and bisexual individuals.
 The New York City metropolitan area had an estimated 568,903 self-identifying GLB residents.
 Meanwhile, New York City is also home to the largest transgender population in the United States, estimated at 25,000 in 2016.
HarperCollins Publishers LLC is one of the world's largest publishing companies and is one of the "Big Five" English-language publishing companies, alongside Hachette, Macmillan, Penguin Random House, and Simon & Schuster.
 The company is headquartered in New York City and is a subsidiary of News Corp.
 The company name is a combination of several publishing firm names: Harper & Row, an American publishing company acquired in 1987, whose own name was the result of an earlier merger of Harper & Brothers (founded 1817) and Row, Peterson & Company; together with UK publishing company William Collins, Sons (founded 1819), acquired in 1990.
Gerber Products Company is a purveyor of baby food and baby products.
 A formerly American-owned company headquartered in Fremont, Michigan, Gerber is now a subsidiary of Nestlé Group.
 Its subsidiary, Gerber Life Insurance Company, is headquartered in White Plains, New York.
Ben Shaoul is a New York City-based real estate owner and developer.
 He is the president of Magnum Real Estate Group, a residential real estate development and management company headquartered in New York City.
 Shaoul is best known as a prominent developer in the Manhattan borough of New York City.
T&M Protection Resources is an American private security, intelligence and investigations company headquartered in New York City, New York.
 The company has a subsidiary, T&M Israel, which maintains offices in Jerusalem, Beer-sheva, Tel Aviv, Haifa, and Ramat Gan, Israel.
Mitchell was born on February 9, 1915 in New York City.
 He attended New York University (NYU) from 1932-1935.
 He left NYU in 1935 and joined the New York Times advertising staff.
 The next year until he was hired as both advertising director and editor of Gouverneur Tribune Press, a country weekly in New York.
 He became assistant publisher of two upstate New York daily papers: the Ogdensburg Journal(1938–1939) and the Rochester Times-Union (1940–1941).
 From 1941-1943, he was the National Advertising Manager of another upstate New York daily paper, the Albany Knickerbocker News.
 He served in the Army Tank Corp during World War II and joined Columbia Broadcasting System (CBS) in 1945 shortly after the war.
 In 1948 Mitchell left CBS and joined the National Association of Broadcasters in Washington, D.C. From 1949-1950 he was the managing director of the Broadcast Advertising Bureau in New York City.
 He worked at NBC in 1950 and then became vice president of the Program Service Division at Muzak Corporation in New York City, where he worked from 1950 to 1953.
 He then became Director of the same company from 1953 to 1958.
 Mitchell joined Encyclopædia Britannica, Inc. as president and director of Encyclopædia Britannica Films Inc. in 1953.
 He became president of Encyclopædia Britannica Inc. (Chicago and all subsidiary) in 1962, a position he held until 1967.
 He was also director of the Federal Reserve Bank of Kansas City from 1972 to 1976.
 Mitchell received LL.D.
 honors from the University of Denver in 1958; West Virginia Wesleyan University in 1978; National College Education in 1969; National University, San Diego in 1986 and Colorado State University in 1971.
Studio One is a content marketing company based in New York City.
 Studio One creates branded or brand-aligned content in a variety of formats that are distributed across a network of websites. On October 7, 2014, Studio One was acquired by The CHR Group, a global marketing services holding company headquartered in New York City.