Answer:
d.
The 2006 payment is included in 2006 GDP as government purchases, but the 2007 payment is not included in 2007 GDP.
Step-by-step explanation:
The 2006 salary was of that year's service provided by the Economist. So it is included in 2006 GDP.
The retirement benefits in 2007 is a transfer payment by government where benefits are paid without any service to be received in return. Transfer payments are not included in GDP