The correct option is A Cultural Nationalism.
The BJP advocated hindutva (“Hindu-ness”), an ideology that sought to define Indian culture in terms of Hindu values, and it was highly critical of the secular policies and practices of the Indian National Congress (Congress Party). It advocated the rebuilding of India in accordance with Hindu culture and called for the formation of a strong unified state. Hence, Option A is correct. The rest of the issues are not the central ideology of BJP, hence, incorrect.