Can we say with certainty whether in 2019 the Korean government was running a surplus or a deficit? A. Yes, if we substitute the values above into the saving and investment equation, it yields a positive number, indicating the government was running a surplus. B. No, we would need to know whether the country was exporting more than it was importing, or vice versa, in order to make this determination. C. Yes, if we substitute the values above into the saving and investment equation, it yields a negative number, indicating the government was running a deficit. D. No, to determine if the government was running a surplus or a deficit, we would need information on private saving