Explanation:

Ya-All, a youth-led non-governmental organization based in Manipur, was honored with the National CSR Award 2021 for its outstanding contributions to social development, particularly in youth empowerment and community building. Therefore, option A is correct. Option B, Goonj, is a well-known NGO working on rural development and clothing but was not the recipient of this specific award in 2021. Options C, Helping Hands, and D, Childline India, are also social organizations, but Ya-All was the recognized winner for the National CSR Award in 2021. Thus, B, C, and D are incorrect.