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.
Q: Jara killed this god by shooting him in the foot with a reed made from the powder of an ill-omened pestle. This god was switched at birth to avoid being killed by King Kamsa. This god purified a river of poison by fatally dancing on the hundred heads of the serpent Kaliya. Duryodhana chose this god's army over this god himself. In his youth, this (*) blue-skinned god was a butter-thief notorious for pulling pranks on the gopis. During the Kurukshetra War, this charioteer convinced one of the Pandavas to go to war against his cousins. For 10 points, name this eighth avatar of Vishnu who advises Arjuna in the Bhagavad Gita.
A:
Social Science