4. Which of the followings are correct? Choose all. '. ' A. If there is a bubble in the housing market, the price to rent ratio would be high as inexplainable by fundamental variables. B. If there is a bubble in the housing market, the expected return in the housing market (except for the expected capital gain) would be higher than those of other assets. C. If there is a bubble in the housing market, the user cost of hOusing would be signicantly lower than the reasonable benet from the housing. D. If there is a bubble in the housing market, the price to income ratio would be very high. E. The price to ratio is relevant with housing bubbles