You have fitted a multiple regression model to predict the price of used Toyota Corollas and obtained an R-square of 0.79. Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. a The model explains 79% of the variation in car prices. b The model gives accurate predictions of house prices 79% of the time. c The model should give accurate forecasts because the R-square exceeds 50% d The predicted prices are only 79% of the actual price and need to be scaled accordinly