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

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。

One of my father’s favorite sayings as I was growing up was “Try it!” I couldn’t say I didn’t like 21 , whatever it might be, 22 I tried it. Over the years I’ve come to 23 how much of my success I owe to my 24 of those words as one of my values. My 25 job was just one I decided to try for a couple of years until I 26 what I want to do as a career（职业）. 27 I believed I would work for a few years, get married, stay home and raise a family, so I didn’t think the job I took 28 that much. I couldn’t have been more 29 . I mastered the skills of that beginning level position and I was given the opportunity（机会）to 30 through the company into different 31 . I accepted each new opportunity with the 32 ,”Well, I’ll try it; if I don’t like it I can always go back to my 33 position. ” But I was with the same company for the past 28 years, and I’ve 34 every career change I’ve made. I’ve discovered I 35 a large number of different talents（才能）and skills that I never would have thought were within me had it not been for my being 36 trying new opportunities. I’ve also discovered that if I 37 what I’m doing and work hard at achieving my 38 . I will succeed. That’s why I’m so 39 to be a part of CareerFables. com. I think 40 has come and I am determined to make it a success.

21. A. everything B. something C. everybody D. somebody

请帮忙给出正确答案和分析，谢谢！