The correct option is C Celebrating 25 Years of Action for Biodiversity
The International Bio-diversity Day (IBD) is observed on 22nd May every year to increase understanding and awareness of biodiversity issues. The 2018 theme Celebrating 25 Years of Action for Biodiversity marks the 25th anniversary of the entry into force of the Convention on Biological Diversity and to highlight progress made in the achievement of its objectives at the national and global levels. On the occasion, the National Mission for Clean Ganga and World Wildlife Federation-India jointly organised a workshop Ganga and its Bio-diversity: Developing a Road Map for Habitat and Species Conservation in New Delhi. The purpose of the workshop is to form an integrated approach for conservation of Gangas ecology, environment and bio-diversity by restoring Gangas ecological integrity.