Final answer:
To calculate the real GDP for 2007, you need to multiply the quantities in 2007 by the prices in the base year, which is 2000.
Step-by-step explanation:
To calculate the real GDP for 2007, you need to multiply the quantities in 2007 by the prices in the base year, which is 2000. This is because real GDP is constructed using prices that do not change from year to year. So, the correct procedure would be to use Option C) Multiply the quantities in 2007 by the prices in 2000 and add up the results.