The correct answer is: A. Guru Nanak
Guru Nanak was the first Guru of Sikhism. He was born in Talwandi, now Nankana Sahib in Pakistan, in 1469. He is considered to be the founder of Sikhism. He traveled extensively throughout the Indian subcontinent, preaching his message of peace and equality. He died in Kartarpur, now in Pakistan, in 1539.
Guru Teg Bahadur was the ninth Guru of Sikhism. He was born in Amritsar, India, in 1621. He is considered to be a martyr for his faith. He was executed by the Mughal emperor Aurangzeb for refusing to convert to Islam. He died in Delhi, India, in 1675.
Guru Hargobind was the sixth Guru of Sikhism. He was born in Amritsar, India, in 1595. He is considered to be the founder of the Khalsa, the warrior community of Sikhs. He died in Amritsar, India, in 1644.
Guru Gobind Singh was the tenth and final Guru of Sikhism. He was born in Patna, India, in 1666. He is considered to be the founder of the Khalsa Panth, the collective body of Sikhs. He died in Nanded, India, in 1708.
Guru Nanak was the only Guru who was born in Patna.