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Suppose the central bank in a hypothetical country Corearea uses "core" inflation for inflation targeting purposes. A sudden drop in food prices O A. would be offset by a decline in the Corearian dollar, making this price change irrelevant. O B. is irrelevant for inflation targeting because the central bank does not include the price of food in its targets for core inflation. O C. makes inflation targeting harder because it is closely related to excess demand in the economy. O D. is closely related to changes in core inflation, so the central bank uses it for targeting inflation. O E. makes inflation targeting easier because it makes these problems less relevant