The Mac Pro is a line of desktops that was launched in 2006 and was manufactured in the United States from 2006 to 2018. In 2019 Apple moved production of the Mac Pro to China. At the beginning of each year Apple releases a new model of the Mac Pro. Each year's model is produced in the year that it is released.

In 2020, your brother bought your used 2018 model of the Mac Pro (which you had bought in 2019), which he will use to play Fortnite. How will this transaction affect the US' GDP statistics for 2020?

a)GDP increases, consumption increases, investment unchanged

b)GDP unchanged, consumption increases, investment decreases

c)GDP increases, consumption unchanged, investment increases

d)GDP unchanged, consumption decreases, investment increases

e)GDP decreases, consumption unchanged, investment decreases

f)GDP unchanged, consumption unchanged, investment unchanged