The purpose of a bibliographic card in the index-card method of note-taking is to record
a) quotations, paraphrases, and summaries
b) mla-style source information
c) autobiographical information about the author of the source
d) the vocabulary associated with academic research

The correct answer is The purpose of a bibliographic card in the index-card method of note-taking is to record (b.) MLA-style source information.

A bibliographic card is a card in which the author who has written a work used as a source for information for a research is given credit. When writing a bibliographic card it is necessary to include the following information: author of the source, 2) title of the source, 3) city of publication, 4) publisher, 5) year of publication. For instance, the bibliography card in the index card for William Burns' book A Brief History of Great Britain should be:  

Burns, William. A Brief History of Great Britain. New York, Facts on File, 2010.

#1  sara was always tasked with selecting birthday presents for her friends and family because everyone admired her  impeccable taste. 

impeccable (adj): perfect, flawless

#2  they moved to the united states many years ago, but their  insular  attitudes made it difficult for them to socialize. 

insular (adj): isolated; separate

#3  the professor explained the  semantic  relationship between the two nouns used in the sentence. 

semantic (adj): related to words or the meanings of words 

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i do not see anyy sentence you are asking for me to read