Consider how the following items would or would not contribute to GDP: i) An econ 2105 student buys a used copy of the text book off eBay (ignore the eBay commission and postal charges) ii) An econ 2105 student buys a brand new copy of the text book iii) An econ 2105 student pays cash in an informal transaction for a pencil to the AASU Economics Club Which of the above would increase GDP? Question 9 options: i only ii only iii only all of the items i-iii would increase GDP