The answer is: [B]: vary the way you introduce your quotes. Don't use the same method every time.
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Answer choice "A" is incorrect. Such a method does NOT make writing more dynamic and is strongly (adamantly?) discouraged as a writing technique.
Answer choice "C" is incorrect. While one should not "pad" one's pad with, or excessively use quotations, one should note use "as few as [you] possibly can".
Answer choice "B" is the best answer answers. Varying the method in which one introduces quotations is an excellent methods to make one's writing more dynamic and engage the reader.