World Wetlands Day is indeed observed annually on February 2nd to raise awareness about the critical role of wetlands. This confirms Statement A. The theme for World Wetlands Day in 2017 was "Wetlands for Disaster Risk Reduction", not "Wetlands for our Future: Sustainable Livelihoods". This makes Statement B incorrect. India hosted the national celebration of World Wetlands Day 2017 at Chilika Lake in Odisha, which is a Ramsar site. This confirms Statement C.