Many manufacturers prefer plastic as a material for containers because it can be molded into many shapes. But plastic is not very strong. It must be fused with glass or steel for strength. It is also not very durable. Even the strongest plastic can break under enough pressure. The biggest disadvantage to using plastic is that it does not decompose. While plastic can be recycled, doing so is tedious and difficult. While it may be more expensive and difficult to work with, aluminum is a much stronger building material with far greater tensile strength. It conducts electricity because it is metal. Best of all, aluminum is very easy to recycle. Even if it is thrown away, it decomposes much more quickly than most manufacturing materials. How does the compare-and-contrast organizational pattern of the passage support the author's purpose? A. The passage begins by describing the advantages of aluminum and ends by contrasting these with the disadvantages of plastic.
B. The passage begins by describing the disadvantages of plastic and ends by explaining how aluminum has many advantages over plastic.
C. The passage begins by describing the benefits of plastic and ends by comparing these benefits with the benefits of aluminum.
D. The passage begins by listening all the benefits of plastic and aluminum and ends by listing all the weaknesses of the two materials.