Explanation
Correct answer: A.
Choice A is the best answer because it most logically completes the text’s discussion of a device that converts light into sound during a solar eclipse. The text states that the device plays different sounds based on the amount of light shining on it, producing a high-pitched flute sound in bright light, a neutral-pitched clarinet sound in mid-range light, and a soft clicking sound in low light. The text also indicates that during a solar eclipse, the sun becomes more covered and the amount of light slowly reduces from full brightness. Thus, because the eclipse begins with full sunlight that progressively decreases, the device would first play a flute sound (bright light), then a clarinet sound (mid-range light), and then a clicking sound (low light).
Why the other choices are wrong
Choice B
Choice B is incorrect. Based on the text’s description of the sounds the device makes, if the device played clicking sounds, then a flute sound, and then a clarinet sound, the light would have to be going from low to bright to mid-range. But the text indicates that when a solar eclipse starts, the light is bright and then slowly reduces, meaning it would go from bright to mid-range light and then to low light. And even as the sun begins to be less covered again, which isn’t discussed in the text, there’s no reason to think the light would jump from low to bright and then back to mid-range.
Choice C
Choice C is incorrect because the text indicates only that the device plays a distinct sound (flute, clarinet, or clicking) for each of the three levels of brightness, not that it varies the speed of any of those sounds.
Choice D
Choice D is incorrect because the text indicates only that the device plays a distinct sound (flute, clarinet, or clicking) for each of the three levels of brightness, not that it varies the volume of any of those sounds.