If an individual is serving in a combat zone as a member of the military, the deadline for filing their return, is at least ______ after the latter of either the last day they are in a combat zone, the last day the area qualifies as a combat zone, or the last day of any continuous qualified hospitalization for injury from service in the combat zone. Select one: a. Two years b. Six months c. 90 days d. One year e. 180 days