David's wife died in 2014. David has not remarried, and maintains a home for himself and his dependent 7 - year old child during 2015, 2016, and 2017, providing full support for himself and his child during these three years. For 2014, David properly filed a joint income tax return. What is David's filing status for 2017?

A. Single

B. Head of Household

C. Surviving Spouse

D. Married filing separately