What did Prime Minister say about the welfare of Adivasis during the inauguration of the Aadi Mahotsav tribal festival?

Question

a) It was important to promote the welfare of Adivasis to attract foreign investments

b) The welfare of Adivasis was not a priority for his government

c) The welfare of Adivasis was personal for him

d) The welfare of Adivasis was the responsibility of the state governments