Concept:National Education Policy 2020 advocates for the use of multiple languages in teaching to improve learning outcomes and preserve linguistic heritage.Explanation:The NEP 2020 is India's first education policy of the 21st century, replacing the 1986 policy. It strongly recommends multilingualism, especially in early childhood education. Using the mother tongue or native language helps children learn more effectively. The policy introduces a new 5+3+3+4 curricular structure with 12 years of schooling and 3 years of pre-school. It also emphasizes formative and competency-based assessment rather than rigid standardization. Among the options, multilingualism is the correct recommendation. Monolingualism goes against the policy. Standardization of curriculum and assessment are not the main focus; instead, flexibility and local context are prioritized.Answer:A. Multilingualism