Answer:
a. The quality of goods available to consumers.
b. The value of babysitting services, when the babysitter is paid in cash and the transaction isn't reported to the government
d. The costs of air and water pollution.
Step-by-step explanation:
Gross domestic product is the sum of all final goods and services produced in an economy within a given period which is usually a year.
GDP calculated using the expenditure approach : consumption spending + Investment spending by businesses + Government Spending + Net Export
Items not included in GDP are:
1. Externality. Negative externality such as pollution isn't included in the calculation of GDP.
2. The quality of materials available
3.criminal activities
I hope my answer helps you