In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

The Romans believed that she was the mother of the giant Cacus. When Heracles came to the underworld to capture Cerberus, the only two spirits who didn't flee from him were those of Meleager and this woman, the daughter of Ceto and Phorcys. FTP, identify this mythological figure, whose sisters were the immortals Stheno and Euryale, from whose body Chrysaor and Pegasus sprang after she was decapitated by Perseus.
Social Science