In paleontology, the term "Elvis taxon" gets applied to a newly identified living species that was once presumed to be extinct. Like an Elvis impersonator who might bear a striking resemblance to the late musical icon Elvis Presley himself, an Elvis taxon is not the real thing, __ is a misidentified look-alike. Which choice completes the text so that it conforms to the conventions of Standard English? A. however but it B. however it C. however, it D. however. It

## Step 1<br />The sentence is discussing the concept of an "Elvis taxon" in paleontology, which is a misidentified look-alike of a presumed extinct species. The sentence is trying to contrast this concept with the idea that an Elvis taxon is not the real thing.<br /><br />## Step 2<br />The sentence is using the word "however" to introduce a contrast or contradiction. The word "however" is used to show a contrast or contradiction between two ideas.<br /><br />## Step 3<br />In English grammar, when "however" is used to introduce a contrast or contradiction, it is typically followed by a comma. This is because "however" is an adverb that is used to introduce a contrast or contradiction, and it is usually followed by a comma to separate it from the rest of the sentence.<br /><br />## Step 4<br />Looking at the options, only option C "however, it" correctly uses a comma after "however" to introduce the contrast.