Which of the followings are correct regarding choice screen auctions? i) Per appearance auction results in higher likelihood that the dominant platform be chosen by the users. ii) Per install auction results in higher likelihood that the dominant platform be chosen by the users. iii) Per appearance auction favors search engines that generate higher revenue per user instead of that are more popular but generate less revenue. iv) Per install auction favors search engines that generate higher revenue per user instead of that are more popular but generate less revenue. 0 a. (i) and (iii) only 0 b. (ii) and (iv) only 0 0. (ii) and (iii) only 0 d. (i) and (iv) Clear my choice