Question 3 We are building a model to predict the price of a house based upon features of the property. Houses can be heated by electricity, oil or natural gas. In coding this into our model, Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a We would assign the values 1, 2 and 3 to electricity, oil and gas. b We assign Elec = 1 if electricity, o if not; Oil = 1 if oil, o if not; and Gas = 1 if gas, o if not. We assign only Oil = 1 if oil, o if not, and Gas = 1 if gas, o if not. d None of the above is true. Answered 8 Resave