Answer- D
March 20 is the day when the annual celebration of the International Day of Happiness takes place.
The purpose of this event is to highlight the significance of happiness and the overall well-being of individuals.
The United Nations initiated this event in 2013 after Bhutan's advocacy for national happiness. Observing the International Day of Happiness reminds us that happiness has a significant impact on our longevity and productivity.
One way to celebrate this occasion is by sharing warm greetings and quotes with loved ones, inspiring them to embrace happiness.