jacob was on active duty in a combat zone from january 1 2017 untill june 30 2018. jacob filed his 2017 federal income tax return on august 17, 2018. he was unable to file form 4868 for the 2017 return. jacob owed a balance due of 640 on his 2017 return. which of the following is true?

a jacob may be assessed a penalty because he fil;ed the balance due 2017 tax return late

b jacob was required by law to file form 4868 on or before the original due date of the 2017 return.

c jacob has to include all money he earned in 2017 on the 2017 tax return. including combat pay.

d jacob will be assessesd no penalty for filing a balance due 2017 tax return after its due date beacuse he was in combat zone.