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Kano and his wife, Hoshi, have been married for $10$ years and have two children under the age of $12.$ The couple has been living apart for the last two years and both children live with Kano. Kano has provided all the means necessary to support himself and his children. Kano and Hoshi do not file a joint return.

c$.$ Assume the original facts except that Kano and Hoshi separated in November of this year. What is Kano's filing status?

Kano's filing status

Single

Single

Head of household

Married filing separately

Married filing jointly