The right answer is C (Hail, king, for so thou art: behold, where stands/The usurper's cursed head:)
The answer is B: Less than a decade ago, the HSUS...an affiliate [Human Society International].
Brackets are used to give the writers (when they need to add information) an opportunity to add an explanation, or emphasis to a word, or change a <em>quote to fit to a sentence, but without changing the meaning of the text</em>. In A) <em>global work</em> doesn't need explanation; C) <em>decade</em> doesn't need explanation; D) <em>HSUS</em> was already explained in the first sentence of the text.
Explanation:
b option is incorrect.here "has" will not come
it's a incorrect helping verb
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