You will be given a definition of a task first, then some input of the task.
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 statement "Ik Onkar" is a central belief in this faith and is the first line of its Mul Mantra. The Khanda is an important symbol of this religion, which also shows a rejection of the caste system by mandating a single surname for male practitioners. Followers adhere to the articles of faith known as the five K's, of which one practice is to carry a comb at all times, as adherents are not permitted to cut their hair. For 10 points, name this Indian religion whose tenth and final guru was Gobind Singh and whose founder was Guru Nanak.
Output:
Social Science