Correct option is D
World Water Day is observed annually on March 22 to highlight the importance of freshwater and advocate for the sustainable management of water resources. This day was first designated by the United Nations General Assembly in 1993 and is observed globally.
Detailed Explanation:
The purpose of World Water Day is to focus on issues such as water scarcity, water pollution, inadequate water supply, and the importance of ensuring access to clean water for all.
Each year, the day has a specific theme to address pressing water-related challenges. For example, themes in the past have included "Valuing Water" and "Leaving No One Behind."
