Based on the information in "America's Best Girl," the reader can conclude that in order to swim the English Channel , a person must

D. have great stamina and resistance to cold.

Explanation:

Tracey E. Fern's "America’s Best Girl" revolves around the story of Gertrude “Trudy” Ederle, a 19-year-old swimmer hopeful of crossing the English Channel. The young swimmer will not only become the first woman to swim the Channel but also the fastest person to do so.

Despite the rough weather and unfavorable conditions, Trudy resisted giving up, instead, focusing on the way ahead and swam for "fourteen hours and thirty-one minutes." Her efforts paid off and she succeeded in crossing the Channel, though not without any repercussion. The severity of the seas that day left her with a damaged eardrum, making her deaf. Trudy later became a swimming instructor for children with hearing impairment.

Thus, the reader can conclude, based on the information given in the text, that a person requires great stamina and resistance to cold to swim the Channel.

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