Suppose you have income data for a sample of individuals over multiple years. In one column, the variable reported is "income in dollars". In the next column, it is "income in 2010 dollars". What is the difference between these two variables Question 9 options: a. There is no difference. b. Income "in dollars" is nominal income, i.e., not adjusted for inflation; Income "in 2010 dollars" is real income, adjusted for inflation with 2010 as base year. c. The column that says "in 2010 dollars" only gives information about income in 2010. d. "In dollars" is real. "In 2010 dollars" is nominal.