Answer:filing as the head of household
Explanation:
Head of household.
- Despite the fact that Marriane was no longer living with Martin over the past six months but since they were not legally divorced it makes them to be still legally married as of the end of that tax year .
Marriane contributed more than half in support of the household and in providing for their dependent child and since she filed separately from her husband she will then use the head of household which is found from the abandoned spouse provision section.