The correct options are
B In 1520 CE, Guru Nanak Ji witnessed the ruthlessness of Babur’s military campaigns during his stay in Sayyidpur.
C Guru Nanak Ji dressed up like a Haji.
Since he was going to the land of Muslims in the Middle East, Guru Nanak Ji dressed up like a Haji. Guruji reached Medina from Mecca. Guruji visited Baghdad after Medina. In 1520 CE, Guruji witnessed the ruthlessness of Babur’s military campaigns during his stay in Sayyidpur. He saw Babur’s soldiers do unspeakable things such as torture and imprisonment of people. In fact, Guru Nanak Ji was among the prisoners of Babur.