A widow maintains a home for herself and her two dependent pre-school children. In 2019, she had adjusted gross income of $51,000 (all earned income). She paid work-related expenses of $8,000 for a housekeeper to care for the children. She was reimbursed for the costs by her employer. How much can be claimed as a child and dependent care credit in 2019? 1. $3,000 2. $0 3. $1,500 4. $6,000.