Which conclusion can reasonably be drawn about the status of the “lawnbot” issue at the time of the writing of Passage 2?

Choice D is the best answer. Passage 2 indicates that the manufacturer of one “lawnbot” had “requested a waiver to operate within the National Radio Quiet Zone” and that astronomers had “countered with the suggestion that the beacons be reprogrammed” or that “global positioning system (GPS) devices” be “added to each lawnbot.” However, Passage 2 offers no evidence that the two sides have come to any resolution. Choice A is incorrect because while the manufacturer of one “lawnbot” had “requested a waiver to operate within the National Radio Quiet Zone,” there is no evidence in Passage 2 that the manufacturer received such a waiver. Choice B is incorrect because while astronomers had “countered with the suggestion that the beacons be reprogrammed to transmit at another wavelength,” there is no evidence in Passage 2 that the manufacturer reprogrammed the lawnbots. Choice C is incorrect because while astronomers had suggested that “global positioning system (GPS) devices” be “added to each lawnbot,” there is no evidence in Passage 2 that GPS devices have been installed.