Sentence Correction (SC) | Re: A middleweight black hole weighs in at roughly 500 solar mas

Here is a sub 500 level question from GPREP.
One doesn't even have to look at the stimulus, and one can say A and B are out for indulging in the comparison blunder of 'less…as'.

'But and yet' together in D and E are brazenly redundant, surprising missed, leaving C alone.
Can SC be simpler be than this?

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