Please answer ASAP but not by pen and paper

Nominal GDP Real GDP Year GDP Deflator (millions) (millions) 2015 300 100 30,000 2019 450 160 % Change 67% 63% O a. What is the base year in this exercise? Why? a. The base year is 2015 because there are no prior year before 2015 b. Has nominal GDP increased? If so, what do you think has contributed to this increase? O a. Yes it has increased from 300 in 2015 to 450 in 2019 . Has there been any economic growth in this economy over the 2015 to 2019 period? Explain