Correct Answer : Option (B) - International Mother Language Day
Note :
International Mother Language Day is celebrated every year on February 21. The theme for this year is “Fostering multilingualism for inclusion in education and society”.
In 1999, the United Nations Educational, Scientific and Cultural Organization (UNESCO) had declared 21st February as International Mother Language Day. It was on the same date, Bangladesh fought for their Bangla language, which transformed into a language-based national movement.