Uchiyama Mikoto's 決意いたしました -> I had the privilege of deciding Kito Momona's 決めました -> I decided Saito Makiko's 決意しました -> I made the decision These are all different ways of saying the same. Personally, it is pretty clear that, except Iguchi, all the others are talking as if they had decided themselves to drop to kenkyuuseis. By the way, all of the Team E girls are happy to be chosen, and ask for support. Isohara Kyoka mentions that since she joined as kenkyuusei until now has passed almost 2 years (another Shiichan?).