Which statement best describes how the compare-and-contrast pattern of the
text supports the author's purpose?
a. the passage begins by listing all the benefits of plastic and
aluminum and ends by listing all the weaknesses of the two
materials.
b. the passage begins by describing the advantages of aluminum
and ends by contrasting these with the disadvantages of plastic
c. the passage begins by describing the benefits of plastic and ends
by comparing these benefits with the benefits of aluminum.
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d. the passage begins by describing the disadvantages of plastic
and ends by explaining how aluminum has many advantages over
plastic.