Looking for some clarification

1) Child of participant is under age 21 and participant dies before RBD. Child is required to take annual life expectancy payments until the earlier of child’s death or the child reaches age 21. Is it correct that, if the child reaches age 21, required annual life expectancy payments stop but child has to take 100% of the balance by the end of the 10th year after reaching age 21. Or do the annual life expectancy payments continue for 10 more years after the child reaches age 21 when 100% distribution is required?

2) Same scenario but participant dies after RBD and child is under age 21 (seems unlikely but possible). Child would take annual life expectancy payments and they would continue until the 10th year after the child dies or turns 21, whichever is earlier, at which point 100% distribution would be required.