根据下面内容，回答题：
Dear Cassy，
Thanks for reminding me by e-mail that you want to baby-sit our children. In spite of the 21 that you are only 12 years old， my wife and I would be 22 to consider your application if you canmeet a few modest 23 :
1. Submit three letters from 24 who will certify that you have never failed to follow directions perfectly in class and never failed to hand in a homework assignment 25.
2. Submit a note from two 26 who will certify that you are in perfect health， have never been sick， and never will be sick.
3. Submit a document from your physical education teacher or team 27 that proves that you can do each of the following: Run two miles in 28 than nine minutes， climb agreased rope to a 29 of twenty feet in thirty seconds while balancing a glass of water on your nose， and walk in bare feet over hot coals and broken glass without complaint or 30.
4. Submit notarized letters from at least two mental health professionals 31 that you have never 32 a jealous， envious， or hostile thought towards any living being Or inanimate object.
5. Play and 33 five expert chess players while blindfolded after going without sleep for 48 hotlrs.
6. Wait 34 for two years while we have private investigators 35 that all your documents are authentic.
Your loving and trusting friends，
The Smiths
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A. fact
B. thing
C. reason
D. fair