>Moving to another question will save this response. > Question 6 2 points Saved Suppose that, in an auction, the valuations are $20, $80, $90, $100, $140, $180. Suppose that the auction type is a second price sealed bid auction. O a. the person with valuation $140 will bid $140 O b. the winner will be the person with the valuation of $180 O c. the winner will pay $140 d. all of the above are true