Question 6: Yan lives in a home that was newly constructed in 2017 for which he paid $200,000. In 2019 he sold the house by himself for $250,000. Which of the following statements is correct regarding the sale of the house? O a. The 2019 sale increased 2019 GDP by $200,000 and had no effect on 2017 GDP. O b. The 2019 sale affected neither 2019 GDP nor 2017 GDP. O c. The 2019 sale increased 2019 GDP by $250,000 and had no effect on 2017 GDP. O d. The 2019 sale increased 2019 GDP by $250,000; furthermore, the 2019 sale caused 2017 GDP to be revised upward by $50,000