I need help with Question 3B please. Thank you so much!

:stion 3: a) In your own words, explain the difference between nominal national income and real national incc b) \"Economists consider an economy to be at full employment despite the fact that some workers are unemployed\". There seems to be conict in this statement, that is, that an economy can be at full employment at the same time there is unemployment. How do economists explain the apparent cc in this statement