20. 依據國際海上避碰規則Rule 8 Action to avoid collision的規則，If there is sufficient searoom,alteration of course alone may be the most effective action to avoid a close-quarterssituation provided that it is made in good time, is substantial and does not result in another close-quarters situation.，要在何時行動才算是made in good time？
(A) 良辰吉時
(B) 越早行動越算是made in good time
(C) 為了要避免製造另一個close-quarters situation，需算準特定時間點來轉向
(D) 為了要產生sufficient sea-room，需挑一個好時間點來轉向