Answer:
d. Maybe greater or less than potential GDP
Step-by-step explanation:
Real GDP stands for real gross domestic product. It is defined as the measurement of the inflation-adjusted which reflects the quantity of all the goods and the services that is produced in a yean by an economy.
A potential GDP is defined as the level of the output that an economy that can produce at the constant inflation rate.
In a given year the real GDP can be greater than the potential GDP or the can be less than the potential GDP of an economy.
Hence the correct option is (d).