hich of the following statements relating to the GNI of a country is/are true? a. GNI provides a valuable way to compare economic outputs between multiple countries. b. GNI is the sum of a nation's GDP and the net income it receives from overseas in a given year. c. GNI excludes all income received from overseas. d. GNI is a metric that has often been used in recent years. e. GNI is based only on all goods and services produced within a country in a given year