Final answer:
The credit for joint custody head of household can be claimed by either single parents or joint custody parents. This credit is not exclusive to one particular group.
Step-by-step explanation:
The credit for joint custody head of household can be claimed by either single parents or joint custody parents. This credit is not exclusive to one particular group.
Single parents who have custody of their child and meet certain criteria can claim this credit, while joint custody parents who share responsibility for their child's care can also claim it.