The correct options are
A Abolition of backward practices in society.
B Strengthening of Hindu-Sikh ties.
Guru Amardas Ji ushered in social reforms to condemn social evils that plagued society. He spoke out against social practices like untouchability and casteism, Sati, Purdah, and the use of intoxicants. At the same time, he wanted to create an affectionate relationship between Hindus and Sikhs.