GMAT Sentence Correction (SC) | Re: Hurry and get your special eclipse-viewing glasses, the United States

Although I marked C as the answer, I donot think this question is more of GMAT type.

Still, I have provided my reasoning:

(A) Hurry and get your special eclipseviewing glasses, the United States is due for a total solar eclipse in 2017!: Run on Sentence.
(B) Hurry to get your special eclipseviewing glasses, the United States is due for a total solar eclipse in 2017.: Run on Sentence.
(C) Hurry to get your special eclipseviewing glasses, because the United States is due for a total solar eclipse
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