With the help of pre-thinking we can clarify the roles of boldfaces even before moving to answer choices, thereby cutting time spend on solution. Notice that the first is the claim of the author and the only opinion stated by the author. Hence it must be his conclusion based on the facts given around. Note that he brings the second boldface to support his opinion that computers can be used more efficiently. Let’s go further with choices:
(A) The first is the conclusion of the argument; the second is an opinion that provides support for that conclusion.
The second is not the opinion but is the fact that indeed happened. Thus it must be evidence provided.
(B) The first is the conclusion of the argument; the second is evidence that provides support for that conclusion.
Correct choice as our pre-thinking indicates.
(C) The first is a premise that provides support for the conclusion of the argument; the second is that conclusion.
The second is not the conclusion but the evidence given in support of the first which is conclusion.
(D) Both are premises that support the conclusion of the argument.
The first is conclusion, hence this makes no sense and is out.
(E) Both are evidence that supports the conclusion of the argument.
The first is conclusion, hence this makes no sense and is out.
Hence B
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