Jackson 30 is married and lived apart from his wife, Carol 28, the entiere year. They have no decree of divorce or separete maintenance. Carol does not want to file a joint return wiht Jachson Bill 6, their son, lived with Carol teh entire Year, Carol has waived her right to Bill's exemption fo r2019 by signing form 8332. Jackson and Carol both provided 50% of Bill's support, Jackson's wages were $37,000; Carold's were $39,000; Bill's gross income was $0, Jackson's taxable income was $22,600. what is Jackson's correct and most favorable 2019 filing statuse?

• Single
• Married filing jointly
• Married filing separately
• Head household.