When David Palmisano won the Powerball, he could choose between getting annual installments or taking a lump sum. An economist suggested that David think about

In calculating total spending, after adding together Consumption, Investment, and Government Purchases, we must

a. add imports and subtract exports b. add exports and subtract imports c. compute net consumption and net investment by subtracting products produced abroad d. compute net consumption and net investment by adding products produced abroad e. compute net consumption and net investment by add products consumed abroad

Why does the private market succeed in meeting consumers’ demands while majority voting in many cases fails to do the same?

Please provide the best answer for the statement.