Referring below mentioned assertions,
Claim 1: Jordan Jones used blood doping to accelerate his cellular respiration and boost his performance.
Claim 2: By altering his pre-race diet, Jordan Jones boosted his cellular respiration and overall performance.
Claim 3: By practicing at a greater altitude, Jordan Jones raised his cellular respiration and enhanced his performance.
Therefore, the strongest claim is that Jordan Jones trained at a greater altitude, which enhanced his cellular respiration and improved his performance.
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