The correct option is B Khalsa
Guru Gobind Singh created a Sikh brotherhood to fight his enemies and social injustice. It was called Khalsa. It initially consisted of five initiated Sikhs who were called the Panj Piaras. They were Daya Singh, Dharam Singh, Mokham Singh, Sahib Singh, and Himmat Singh. All of them drank 'Amrit'. Guru Gobind Singh and the five sikhs adopted the title of Singh.