Which of the following is TRUE in the calculation of GDP? a. GDP is positively adjusted to include production in the underground economy. b. GDP is negatively adjusted to account for environmental da

Which of the following is TRUE in the calculation of GDP?

a. GDP is positively adjusted to include production in the underground economy.

b. GDP is negatively adjusted to account for environmental damage caused by businesses.

c. GDP does not include goods and services produced privately inside the home.

d. GDP includes a positive adjustment for leisure activities, even if no purchase is required.