Cloe's husband died in January of 2004. She has a 20-year-old son and a sister who live with her. Her son attends a trade school part-time and earned $11,000 from his part-time job. Cleo's sister is a full-time student and only earned $2,800 from her part-time job. How many personal and dependency exemptions can Cloe claim in 2005 and what is her filing status?