difficult to interpret the argument of critical reasoning

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Defense Department analysts worry that the ability of the United States to wage a prolonged war would be seriously endangered if the machine-tool manufacturing base shrinks further. Before the Defense Department publicly connected this security issue with the import quota issue, however, the machine-tool industry raised the national security issue in its petition for import quotas.

Which of the following, if true, contributes most to an explanation of the machine-tool industry's raising the issue above regarding national security?

A. When the aircraft industries retooled, they provided a large amount of work for too builders.

B. The Defense Department is only marginally concerned with the effects of foreign competition on the
machine-tool industry.

C. The machine-tool industry encountered difficulty in obtaining governmental protection against imports on
grounds other than defense.

D. A few weapons important for defense consist of parts that do not require extensive machining.

E. Several federal government programs have been designed which will enable domestic machine-tool
manufacturing firms to compete successfully with foreign toolmakers.


Can some one please explain the correct answer. I am having difficulty understanding the argument itself.
Source: — Critical Reasoning |

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by sunnyjohn » Mon Aug 08, 2011 10:26 am
Well this is my understanding -

F1: Machine tool manufacturing base is shrinking currently. (machine-tool manufacturing base shrinks further)
P1: Defense department connected the issue with import Quota issue.
May be gov put import quota on machine-tool, and domestic manufacturing is unable to provide enough supply. So most likely Defense department was in favor of increasing import quota (removal of ban on import quota)
P2: Machine-tool industry raised the issue in its petition for import quota.
Industry must be against defense department or In short industry want to keep the import quota intact or may be wants to decrease it further.

A. When the aircraft industries retooled, they provided a large amount of work for too builders.
Irrelevant.

B. The Defense Department is only marginally concerned with the effects of foreign competition on the
machine-tool industry.
This is correct as defense ministry is not concerned with competition. In fact they don't care if local industry survives.

C. The machine-tool industry encountered difficulty in obtaining governmental protection against imports on grounds other than defense.
Out of scope.

D. A few weapons important for defense consist of parts that do not require extensive machining.
Irrelevant.

E. Several federal government programs have been designed which will enable domestic machine-tool
manufacturing firms to compete successfully with foreign toolmakers.
This actually weakens the industry argument and support the defense department.