I cried on my way home because I have just been waiting for so long to do it . We had to do these physical tests in order to get certified and I failed the 200 yard swim . ~_~ I was almost there , but it was the first time I 'd gone swimming since ' 06 and I got water up my nose and had been rushing . FAIL .
According to the above context, choose the best option to answer the following question.
Question: What may be the cause of my sadness ?
Options:
A. I had to skip the 200 yard swim .
B. I put a plug on my nose but I still swam too slow .
C. My swimming did not meet the standard .
D. Swimming a lot lately did n't hlep me pass the test .


C