Detailed explanation so I can fully understand please

Foreign Earned Income Exclusion. (Obj. 1) From March 9, 2015 until August 14, 2016 Eva is sent to London, England on a temporary work assignment. Eva's salary during 2015 is $100,000, of which $84,000 is earned while working in London. Her salary during 2016 (a leap year) is $125,000, of which $77,000 is earned while working in London. How much of Eva's salary is taxed in 2015 and 2016? Assume the maximum foreign earned income exclusion for 2016 remains at $100,800. Besides taking the exclusion for foreign earned income, what other options are available to Eva