Let's see if this will help! (the passage and answer choices provided, may result in a tutor explaining a better option)
With the majority of multiple choice tests, there will always be two choices you can easily eliminate and you will be left with two choices that seem TRUE, but only one is the CORRECT one.
Make sure to review the passage and any infographic provided.
Answer Choice C is the correct answer because Lines 40-44 say, “Although even under these conditions hundreds of millions of photons strike each square millimeter of ground each second, this illumination is below the threshold needed to stimulate the germination of most seeds,” where “these conditions” refers to fields being plowed at night. These Lines most clearly tell us that “seeds present in the fields plowed at night are exposed to some amount of light.” Answer Choice A is incorrect because this refers to a claim the scientist believes about fields plowed during the day, and not at night. Answer Choice B is incorrect because it only talks about the light exposure that occurs during plowing at daytime. Answer Choice D is incorrect because it only concerns Hartmann’s skepticism of his own idea about nighttime plowing, given that he assumed it would have already been discovered, and not about exposure to light during the nighttime.
How to solve this? The Question asks, “Which choice best supports the idea that seeds present in the fields plowed at night are exposed to some amount of light?” To solve this, we should begin by going through each of the answer choices given, looking for any text that tell us about plowing at night and how weed seeds are still exposed to some light.