Question: Whos is a feminist theorist and writer best known for her criticism of pornography?
Context: Ranjana Khanna is a literary critic and theorist recognized for her interdisciplinary, feminist and internationalist contributions to the fields of post-colonial studies, feminist theory, literature and political philosophy.  She is best known for her work on melancholia and psychoanalysis, but has also published extensively on questions of post-colonial agency, film, Algeria, area studies, autobiography, Marxism, the visual and feminist theory.  She received her Ph.D in 1993 from the University of York.  She has taught at the University of Washington in Seattle and at the University of Utah, and in 2000 began teaching at Duke University, where she is Professor of English, Literature and Women’s Studies.  Her theorization of subjectivity and sovereignty, including her recent work on disposability, indignity and asylum, engages with the work of diverse thinkers such as Derrida, Irigaray, Kant, Marx, Heidegger, Beauvoir, and Spivak.  From 2007 until 2015, she was the Margaret Taylor Smith Director of Women’s Studies, and in July 2017, she was appointed to be the incoming Director of the John Hope Franklin Humanities Institute, both at Duke University. Tillie Olsen: A Heart in Action is a 2007 documentary film directed and produced by Ann Hershey on the life and literary influence of Tillie Olsen, the U.S. writer best known for the books "Tell Me a Riddle" (1961) and "" (1974).  The film includes extensive interviews with Olsen and with prominent fans of her work, including writers Alice Walker and Florence Howe and feminist political leader Gloria Steinem. Florence Rush (January 23, 1918 – December 9, 2008) was an American certified social worker (M.S.W. from the University of Pennsylvania), feminist theorist and organizer best known for introducing The Freudian Coverup in her presentation "The Sexual Abuse of Children: A Feminist Point of View" about childhood sexual abuse and incest at the April 1971 New York Radical Feminists (NYRF) Rape Conference.  Rush's paper at the time was the first challenge to Freudian theories of children as the seducers of adults rather than the victims of adults' sexual/power exploitation. Joanna Russ (February 22, 1937 – April 29, 2011) was an American writer, academic and radical feminist.  She is the author of a number of works of science fiction, fantasy and feminist literary criticism such as "How to Suppress Women's Writing", as well as a contemporary novel, "On Strike Against God", and one children's book, "Kittatinny".  She is best known for "The Female Man", a novel combining utopian fiction and satire, and the story "When It Changed". Andrea Ackerman is an American artist, theorist and writer best known for her New Media artworks.  She lives and works in New York. Sandra M. Gilbert (born December 27, 1936), Professor Emerita of English at the University of California, Davis, is an American literary critic and poet who has published in the fields of feminist literary criticism, feminist theory, and psychoanalytic criticism.  She is perhaps best known for her collaborative critical work with Susan Gubar, with whom she co-authored, among other works, "The Madwoman in the Attic" (1979).  "Madwoman in the Attic" is widely recognized as a text central to second-wave feminism. Andrea Rita Dworkin (September 26, 1946 – April 9, 2005) was an American radical feminist and writer best known for her criticism of pornography, which she argued was linked to rape and other forms of violence against women.  Her views were widely criticized by liberal feminists and others.  At the same time, she maintained a dialogue with political conservatives, and wrote a topically-related book, "Right-Wing Women".  After suffering abuse from her first husband, she was introduced to radical feminist literature, and began writing "Woman Hating".  Coming to New York, she became an activist on several issues and a writer, eventually publishing 10 books on feminism. Guy Newman Smith (born 21 November, 1939, Hopwas, Staffordshire) is a prolific English writer best known for his pulp fiction-style horror fiction, though he has also written non-fiction, softcore pornography, and children's literature. The Sadeian Woman and the Ideology of Pornography is a 1978 non-fiction book by Angela Carter.  The book is a feminist re-appraisal of the work of the Marquis de Sade, who had been criticized by earlier feminist theorists such as Andrea Dworkin.  Carter sees de Sade as being the first writer to see women as more than mere breeding machines, as more than just their biology and, as such, finds him liberating. Cynthia Holden Enloe (born July 16, 1938) is a feminist writer, theorist, and professor.  She is best known for her work on gender and militarism and for her contributions to the field of feminist international relations.  In 2015, the "International Feminist Journal of Politics", in conjunction with the academic publisher Taylor & Francis, created the Cynthia Enloe Award "in honour of Cynthia Enloe’s pioneering feminist research into international politics and political economy, and her considerable contribution to building a more inclusive feminist scholarly community."
Answer: Andrea Dworkin