Which of the following is included in the calculation of GDP? a. The purchase of tutoring services from a tutor who holds citizenship outside the country but resides within the country. b. The purchase of a new edition of a foreign textbook that was produced in a different nation. c. The purchase of ink and paper supplies by a textbook company for the production of new textbooks. d. The purchase of a used textbook from a friend who took the same class last year.

a. The purchase of tutoring services from a tutor who holds citizenship outside the country but resides within the country

Explanation:

Gross domestic product knowns as GDP provide the total market value of all produced goods/service in a country within particular period of time. It allows to know the Economic growth rate of a particular country.

GDP can be analysed an calculated using three most common ways ;it can be through

1)expenditures

2)production

3) incomes.

It can be calculated by by the summation of all money spent by government or consumer at a particular period of time. Hence nominal GDP is the value.It gives measures on production. It should be noted that The purchase of tutoring services from a tutor who holds citizenship outside the country but resides within the country is included in the calculation of GDP.