The forty-seven geothermal springs of Arkansas’ Hot Springs National Park are sourced via a process known as natural groundwater recharge,

Question

The forty-seven geothermal springs of Arkansas’ Hot Springs National Park are sourced via a process known as natural groundwater recharge, in which rainwater percolates downward through the earth—in this case, the porous rocks of the hills around Hot blank collect in a subterranean basin.

Which choice completes the text so that it conforms to the conventions of Standard English?

Accepted Answer

Choice C is the best answer. The convention being tested is the punctuation of a supplementary element within a sentence. The dash after &ldquo;Springs&rdquo; pairs with the dash after &ldquo;earth&rdquo; to separate the supplementary element &ldquo;in this case, the porous rocks of the hills around Hot Springs&rdquo; from the rest of the sentence. Choice A is incorrect because it fails to use appropriate punctuation to separate the supplementary element from the rest of the sentence. Choice B is incorrect because a colon can&rsquo;t be paired with a dash in this way to separate the supplementary element from the rest of the sentence. Choice D is incorrect because a comma can&rsquo;t be paired with a dash in this way to separate the supplementary element from the rest of the sentence.

Question e0b53c