Answer- B
March 4th is observed as World Obesity Day every year with the aim of raising awareness about obesity and encouraging efforts to eliminate it.
The non-profit organization, World Obesity Federation, which is in official relations with the World Health Organization, organizes the day.
The day was first observed in 2015 when the organization collaborated with the World Health Organization and Lancet Commission to raise awareness about the issue.
In 2016, the focus shifted to childhood obesity, while in 2017, efforts were made to promote treatment of obesity and prevent future consequences.