Answer:
The best answer to the question: Which quotation correctly uses ellipsis to shorten Twain´s words, would be: the second one "and there is no reason why I shouldn´t".
Explanation:
The reason for this being the correct answer comes from understanding the purpose of an ellipsis, or ellipses. Ellipses are punctuation marks, just like comas, or periods, that have the specific purpose of marking portions of a written sentence, paragraph, passage, or an entire text, that are not really needed information, but rather added, and which if removed from the text will not affect the overall comprehension of the meaning of the text. In this case, Twain saying "and there is no reason why I shouldn´t" in regards to how long he expects to live, is added information to the main passage that if removed from it will not affect the overall understanding of his meaning.
Your answer would be the biofuel industry. The biofuel itself is combustible energy made out of living plant matter, like sugar canes or trees. Biofuel uses plant matter to create energy, but has been increasing deforestation in recent years.
There is a stigma that they are either alcoholics or drug addicts and this is the reason for thier homelessness.
