Correct option is A
The correct answer is 22nd March.
World Water Day:
World Water Day is celebrated on 22nd March. It held on 22 March every year since 1993, focuses on the importance of freshwater. The theme of 2023 World Water Day is "Accelerating Change". International days and weeks are occasions to educate the public on issues of concern and to mobilize political will and resources to address global problems. Thus, world water day is celebrated on 22 March.