Answer:
C. June 15, 2020
Explanation:
Generally, soldiers are granted an automatic extension if they are deployed in a combat zone until the day that they return from there. But if the soldier returned before the tax year was over (in this case, March 31, 2019), he/she is required to file his/her taxes by June 15 of the next year. Other exceptions would include if the soldier had been injured and wasn't able to file taxes on time, the extension applies for the whole time he/she is hospitalized. .