Gary Ngo, a resident of Minnesota, worked for the U.S.O. in Kuwait during 2018 and he earned $100,000. Gary only returned to Minnesota for 32 days during 2018 to visit his wife and children, ages 3,4, and 5. What is Gary's federal income tax liability. a. $715.00. b. $695.00 c.$787.50 d. $15,000. e. He doesn't owe any federal income tax.