So the result was 700 m swimming ; 350 m breaststroke and 350 m front crawl legs - all done in 23 minutes ! I am so proud of myself ! I might also soon chance it and do a few lengths of crawl with arms - I do n't know why that frightens me so , but it does .

Question: What did I do before swimming ?
Answer: None of the above choices .I prepared an oxygen tank .I measured my arm length .I stopped breathing .