Ral and Brigitte are retired and looking for ways to save on income tax. Given the difference in their respective incomes, their financial advisor recommends income splitting because they qualify for the pension income credit. Ral's annual income is $40,000 and Brigitte's is $18,000. Their respective average tax rates are 18% and 8%. How much income tax will Ral and Brigitte save if $5,000 of Ral's income is moved to Brigitte's? (Take into account that, after the income splitting, their respective average tax rates will be 15% and 10%.) O $1,480 O $1,350 O $1,280 O $1,090