here is my question

Uni 2 FRQ From 2007 3. Indicate whether each of the following is counted in the United States gross domestic product for the year 2006. Explain each of your answers. (a) The value of a used textbook sold through an online auction in 2006 (b) Rent paid in 2006 by residents in an apartment building built in 2000 (c) Commissions earned in 2006 by a stockbroker (d) The value of automobiles produced in 2006 entirelyr in South Korea by a rm fully owned by United States citizens