The correct options are
A He was born to Mata Guruji and Guru Tegh Bahadur.
D Guru Gobind Singh received his training for the Guruship from his father.
He was born to Mata Guruji and Guru Tegh Bahadur, the ninth Guru of Sikhism, on 22 December, 1666. He spent his early life in Patna. The Dastar Bandi ceremony of Guru Gobind Singh was held at Lakhnaur in 1671. In this ceremony, his maternal uncle tied a green turnban on his head. He was reunited with his father at Chak Nanaki (Anandpur Sahib) on 1672. He received his training for the Guruship from his father. He learnt the languages of Persian, Sanskrit, and Gurmukhi.