The answer would be Jane that appeals to be the answer.
1)Averages could be done.
<span>2)Experiments or "works" could be repeated many times. </span>
<span>3)Limiting factors likely to introduce errors could be avoided.</span>
Samuel Langhorne Clemens (Mark Twain) uses a fine humor style which is easily detected in extracts like:
<em>"Thish-yer Smiley had a mare; the boys called the fifteen minute nag(...) for all she was so slow and always had the asthma, or the distemper or the consumption, or something of that kind."</em>
<em>"...And he had a little small bull pup, that to look at him you´d think he warn´t worth a cent(...) his underjaw´d begin to stick out like the fo´castle of a steamboat..."</em>
<em>"...He ketched a frog one day, and took him home, and said he cal´klated to edercate him(...) and you bet you he did learn him, too.</em>
Twain is satirizing several aspects of American life, but specially the country "punks" who tend to speak at length about subjects that are close to them but are really unimportant an nonsensical.
The answer is the last one, which is "Transforming disaster into opportunity-did you hear what happened?- has made him a hero". As you can see transforming disaster into opportunity has made him a hero is a sentence by itself. "Did you hear what happened?" Is just extra info that goes between dashes.