There are tests to detect some of the rare genetic flaws that increase the likelihood of certain diseases. If these tests are performed, then a person with a rare genetic flaw that is detected can receive the appropriate preventive treatment. Since it costs the health-care system less to prevent a disease than to treat it after it has occurred, widespread genetic screening will reduce the overall cost of health care.

The argument assumes which one of the following?

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Correct answer marked below

The cost of treating patients who would. in the absence of screening, develop diseases that are linked to rare genetic flaws would be more than the combined costs of widespread screening and preventive treatment.

Correct

Most diseases linked to rare genetic flaws are preventable.\n

The resources allocated by hospitals to the treatment of persons with diseases linked to genetic flaws will increase once screening is widely available.

Even if the genetic tests are performed, many people whose rare genetic flaws are detected will develop diseases linked to the flaws as a consequence of not receiving the appropriate preventive treatment.

If preventive treatment is given to patients with rare genetic flaws, additional funds will be available for treating the more common diseases.

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What this question tests

What it tests

Whether you can identify the unstated assumption a critical-reasoning argument depends on.

Common trap

Picking an option that strengthens the argument or is merely relevant instead of one that is required.