Identify the one illogical comparison among the following examples. when running, staying hydrated is more important than staying cool. she runs more faster than her brother. the quickest runner on our team beat me by 30 seconds. that racer is 18 months older than the others on the team.

If you're asking which comparison makes the least sense contextually with the others (or which one doesn't belong, in other words), the answer would be "When running, staying hydrated is more important than staying cool" because the other comparisons have to do with comparisons directly relating to the runners, such as comparing the speeds and ages, while this one, quite frankly, does not.