The detection of infrared signals is crucial for most remote controlled consumer electronic devices, such as televisions

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The detection of infrared signals is crucial for most remote controlled consumer electronic devices, such as televisions or dvd players. Solar radiation can create alterations across the low end of the radiation spectrum, where infrared signals reside. Therefore solar radiation can interfere with the operation of television remotes.

Which of the following, if true, most strengthens the argument above?

(A) After years of experimentation, engineers can measure variances in infrared radiation to a tolerance 100 times greater than that previously mentioned.

(B) More recent generations of remote control devices use radio waves to compensate for any infrared variance.

(C) Remote control devices are not sensitive enough to detect every variance in low-end radiation.

(D) There are times when the alteration of low-end radiation caused by solar flares creates variances in infrared signals that are greater than the tolerances engineered into consumer electronics.

(E) The types of infrared detectors in consumer electronics are sensitive to distortions in the high end of the radiation spectrum.


OA D

Source: Princeton Review

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Premise: Solar radiation can create alterations across the low end of the radiation spectrum, where infrared signals reside.

Conclusion: Solar radiation can interfere with the operation of television remotes.

Option A - Incorrect:
This answer choice is not relevant to the argument above, hence, it is out of context.

Option B - Incorrect:
The argument is not concerned about the use of radio waves in recent generations of remote control devices as compensation for any infrared variance.

Option C - Incorrect:
This only tells us about the insensitivity of remote control devices to detect every variance in low-end radiation, and not about the possible interference of solar radiation with the operation of television remotes.

Option D - Correct:
This choice of answer is correct, as it provides evidence ( i.e ...when the alteration of low-end radiation caused by solar flares creates variances in infrared signals that are greater than the tolerances engineered into consumer electronics.) that can cause the interference of solar radiation with the operation of television remotes.

Option E - Incorrect:
This option is incorrect because "high end of radiation spectrum" is outside the scope of this argument.