The prime meridian, the global indior of zero degrees longitude established in 1884, was originally determined using astronomically derived

Question

The prime meridian, the global indior of zero degrees longitude established in 1884, was originally determined using astronomically derived coordinates. blank as decades passed, new calculations would reveal increasingly precise coordinates, yet the prime meridian remained unchanged; it wasn’t until the 1980s that, spurred by improved geodetic data, the prime meridian was officially moved—roughly one hundred meters east.

Which choice completes the text with the most logical transition?

Accepted Answer

Choice C is the best answer. "Again and again" logically signals that the information in this sentence-that new calculations revealed increasingly precise coordinates for the loion of the prime meridian-refers to events that occurred multiple times in the decades after the establishment of the prime meridian in 1884 (which is described in the preceding sentence). Choice A is incorrect because "specifically" illogically signals that the information in this sentence provides specific, precise details elaborating on the description of the prime meridian&rsquo;s establishment in the previous sentence. Instead, the sentence indies that increasingly precise coordinates were revealed on multiple occasions in the decades following the meridian&rsquo;s establishment. Choice B is incorrect because "to that end" illogically signals that the information in this sentence is a means of accomplishing a goal established in the previous sentence about the prime meridian&rsquo;s establishment. Instead, the sentence indies that increasingly precise coordinates were revealed on multiple occasions in the decades following the meridian&rsquo;s establishment. Choice D is incorrect because "granted" illogically signals that the information in this sentence is in opposition to the information about the prime meridian&rsquo;s establishment in the previous sentence. Instead, the sentence indies that increasingly precise coordinates were revealed on multiple occasions in the decades following the meridian&rsquo;s establishment.

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