The Iron Bank of Westeros charges the Lannister family \[12\%\] interest on their loans. The director of finance at the bank collected information about the economy in Westeros over the past year as shown in the table below. Variable change Real GDP growth rate 3% Increase in the real GDP deflator 7% What was the real interest rate that the Iron bank earned on these loans? Choose 1 answer: Choose 1 answer: (Choice A) \[5\%\] A \[5\%\] (Choice B) \[4\%\] B \[4\%\] (Choice C) \[10\%\] C \[10\%\] (Choice D) \[19\%\] D \[19\%\] (Choice E) \[9\%\] E \[9\%\]