Read the following context and choose the best option to answer the question.
Context: 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 .
Question: What may be the cause of my sadness ?
Options: 
- I had to skip the 200 yard swim .
 - I put a plug on my nose but I still swam too slow .
 - My swimming did not meet the standard .
 - Swimming a lot lately did n't hlep me pass the test .


My swimming did not meet the standard .