A. 20 April
B. 22 May
C. 21 February
D. 23 March
🧠 Explanation:
International Mother Language Day, celebrated on 21 February, promotes linguistic diversity and cultural heritage. This event is a key topic in cultural studies, engaging educators and language advocates. It highlights the importance of preserving native languages, making it relevant for those studying global communication, education, and cultural identity, emphasizing the role of language in fostering inclusivity and cultural pride worldwide.