A) National Institute of Open Schooling (NIOS)
B) Indira Gandhi National Open University (IGNOU)
C) Central Board of Secondary Education (CBSE)
D) National Council of Educational Research and Training (NCERT)
Explanation:
The National Institute of Open Schooling (NIOS), a board of education under the Union Government of India, has won the prestigious UNESCO King Sejong Literacy Prize 2021 on the occasion of International Literacy Day 2021.