Step-by-step explanation:
Remember that the GDP measures the market value of all goods and services produced in an economy (country or region) in a specific period of time
a. This does not add to the U.S GDP for 2006 because windows were produced in 2010.
b. This does not add to the U.S GDP for 2006 because the Irish marketing consultant earns in 2010.
c. This does not add to the U.S GDP for 2006 because Tim and Tina got married in 2010.
d. Transactions that add in 2010 GDP do not count in 2006 GDP.