A. Discuss/explain the following economist responsible in labor and employment. a. Adam Smith b. Thomas Malthus c. David Ricardo d. Karl Marx e. John Maynard Keynes B. How do you distinguish : 1. unemployment from underemployment 2. visible underemployment from invisibleunderemployment C. Why is unemployment a serious problem that merits priority attention? D. If you were the Secretary of Labor and Employment, cite and explain the policies you would promote to solve the unemployment