可能選択[kanousentaku] available choice
採択[saitaku] adoption
取捨選択[shushasentaku] selection
初期選択項目[shokisentakukoumoku] initial choice
選択[sentaku] selection

選択科目[sentakukamoku] elective subject or course
選択項目[sentakukoumoku] choice
選択子[sentakushi] selector
選択肢[sentakushi] choices
選択状態[sentakujoutai] selection condition