Question: Azfar Hussain (Bengali: আজফার হোসেন ) is a Bangladeshi theorist, critic, academic, bilingual writer, poet, translator, and activist, Bengali, is also known by its endonym Bangla, it's the national, and official language of which country?
Sentence (from "Azfar Hussain"): He taught English, World Literature, Ethnic Studies, and Cultural Studies at Washington State University, Bowling Green State University, and Oklahoma State University; while, in Bangladesh, he taught English at Jahangirnagar University and North South University.
Relevant evidence: No