19.
(B).
This question is an Analyze the Argument Structure question; the
best approach is to identify the conclusion, decide how each boldface portion
of the question relates to the conclusion, and eliminate incorrect answer
choices on that basis. Here, the second boldface is the conclusion of the
argument, as highlighted by the use of the signal word “Therefore.”
(A) The first boldface is not an assumption as assumptions are, by definition,
unstated. Also, the second boldface does not just describe the argument’s
recommended position, it is itself the conclusion of the argument.
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