According to Mahatma Gandhi, the correct option is "option-2: Politics and religion must go hand in hand." Gandhi believed in the idea of incorporating spirituality and morality into politics. He believed that politics should be guided by religious and ethical principles in order to achieve a just and harmonious society. For Gandhi, religion provided the moral and spiritual compass that was necessary in the realm of politics. He emphasized the importance of living according to religious values and principles in all aspects of life, including politics. Gandhi believed that a separation of religion and politics would lead to a fragmented society, lacking in moral grounding and ethical principles. Hence, he argued for the integration of religion and politics, where religious teachings would influence and guide political decisions.