Better-Vision-Maker is a liquid that enhances the visual abi

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Better-Vision-Maker is a liquid that enhances the visual ability of a person with average eyesight by almost 500 times. The drug is intended for use by police, rescue, and medical service professionals. Research shows that a change in visual ability can alter the dynamics of the brain so that the new functionality can be adapted to. More testing into the side-effects of the drug should be performed before it is distributed for use.

The author's conclusion relies on which of the following assumptions?

A) The shift in the brain's dynamics caused by transition from one visual state to another may have an unfavorable effect.
B) Testing can result in the finding of additional uses for the drug which will then increase its market value.
C) To handle the extreme challenges presented to them, police, rescue, and medical services need the use of any practical tool available to them.
D) The brain adapts to increased visual ability in a similar way to an increased ability of another of the body's senses.
E) Enhancing the eyesight of the professionals mentioned will not actually result in an increase of their performance.

OA A

Source: Economist Gmat

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by deloitte247 » Sun Jun 23, 2019 3:46 am

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The argument needs a foundation to which the conclusion relies on.
Premises:
- A liquid known as better-vision-maker enhances the visual ability of a person by almost 500 times.
- It is intended for use by police rescue and medical service professional.
Explanation: This liquid can alter the dynamics of the brain due to adaptation, that's why more testing as regards to the side effects should be carried out.

OPTION A - CORRECT
This assumption seems to be the trigger for the conclusion. Due to the unfavorable effects, this liquid might have when used, more testing on the drug should be performed before being distributed for use.

OPTION B - INCORRECT
The argument is concerned about the drug in relations to its side effects, not about finding additional uses of it.

OPTION C - INCORRECT
This is irrelevant to the reason why more testing should be conducted on the drug.

OPTION D - INCORRECT
The argument's concern is the adaptation of the brain to the increased visual ability, ''any other adaptation'' is outside the scope of the argument.

OPTION E - INCORRECT
The argument is not after the performance of the professionals mentioned in the argument.