Jon, a U.S. petroleum engineer, moved his family to Saudi Arabia for a two-year assignment. The company provided him a travel allotment of $.10 a mile, a food allowance of $500 a month, and $2000 a month for housing to maintain his standard of living. What kind of pay factor was used?A. Base payB. DifferentialsC. BonusesD. IncentivesE. Assistance programs