The correct answer is D. Use it to broaden a search to include different forms of the truncated word.
Explanation:
In internet search, the word truncation, also called stemming refers to a search technique in which only the section of a term is written, for example, instead of including the term "create" you only include the first letters of it or the root word which is "creat" or instead of including the term "spacecraft" you include only "space". This is mainly used to broaden the results in a search, because by including only part of a term results will include all possible forms or ending of the term, this means in the case of "creat" results would include the words creation, creative, creat, creature, etc and in the case of "space" this would include results related to space, spacer, spaceship and not only spacecraft. Therefore, the reason for using truncation is mainly to broaden a search to include different forms of the truncated word.
Answer: c. insane
The narrator of this excerpt complains that other people characterize him as insane (<em>"why will you say that I am mad?"</em>) and he wants to deny the credibility of this claim. He says that he might be nervous, but he is not mad. In fact, his senses are sharper than ever, as he can hear everything, including what goes on in Heaven and Hell. This fact, intended to convince us of his sanity, proves that he is indeed insane.
