c. An article in The Economist from December 11, 2021 titled "Monetary policy (2): Emergency exit" ends with the sentence: "In other words, if the ECB's ultimate problem is that inflation is too low, rather than too high, then it may not have the luxury of doing away with QE." An inflation rate that is consistently "too low" (i.e., below target) could indeed indicate that the ECB's strategy may have not been optimal. Explain why. Specifically, what could have been gained by a strategy that allowed for higher inflation