(单选题,2.0分)使用可更新可滚动ResultSet对象新增一条记录的正确操作是（ ）。

【单选题】
A sql = "select * from sysuser order by userid"; ResultSet rs = st.executeQuery(sql); rs.moveToInsertRow(); rs.updateString(1, "yly"); rs.updateString(2, "yly"); rs.updateString(3, "yly");
B sql = "select * from sysuser order by userid"; ResultSet rs = st.executeQuery(sql); rs.moveToInsertRow(); rs.updateString(1, "yly"); rs.updateString(2, "yly"); rs.updateString(3, "yly"); rs.insertRow();
C sql = "select * from sysuser order by userid"; ResultSet rs = st.executeQuery(sql); rs.insertRow(); rs.updateString(1, "yly"); rs.updateString(2, "yly"); rs.updateString(3, "yly"); rs.moveToInsertRow();
D sql = "select * from sysuser order by userid"; ResultSet rs = st.executeQuery(sql); rs.updateString(1, "yly"); rs.updateString(2, "yly"); rs.updateString(3, "yly"); rs.insertRow();

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