阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
Another person’s enthusiasm was what set me moving toward the success I have achieved．That person was my stepmother．
I was nine years old when she entered our home in rural Virginia．My father 36 me to her with these words: “I would like you to meet the fellow who is 37 for being the worst boy in this county and will probably start throwing rocks at you no 38 than tomorrow morning．”
My stepmother walked over to me, 39 my head slightly upward, and looked me right in the eye．Then she looked at my father and replied, “You are 40 ．This is not the worst boy at all, 41 the smartest one who hasn’t yet found an outlet（释放的途径）for his enthusiasm.”
