The refundable credit for children of the year 2021 can be claimed by: A. Maria has $ O income and has 1 qualifying child B. Mara has an income of $ 28,000 and lives with hers three grandchildren of hers under 18 years of age C. Vanessa is in charge of her younger sister who is her qualifying daughter. She has no income, she only receives government aid. D. Anyone can claim the refundable child credit