RRB NTPC 2017 · Question 250 of 1076

IN October 2015, more than 350 landmark in more than 90 countries were lit blue, the official colour of the United Nations. What was the occasion?

1. A$$70^{th}$$ Aniversary of United NationsCorrect
2. B$$90^{th}$$ Aniversary of United Nations
3. C$$50^{th}$$ Aniversary of United Nations
4. D$$60^{th}$$ Aniversary of United Nations