Who is ineligible for the Premium Tax Credit?

Austin. He was enrolled in a Marketplace plan for only five months of the year.

James. His household income is equal to $300\%$ of the federal poverty line for his family size.

Kacie. She is claimed as a dependent on her sister's tax return.

Zoe. She was married at the end of the year, but she filed separately from her husband. She qualified to use $($and did use$)$ the head of household filin