Direction: Identify if the underlined part in the below sentence is incorrect.
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Direction:** Identify if the underlined part in the below sentence is incorrect. If yes, choose the option which makes the sentence grammatically correct. If no, choose the option that is the same as the underlined part.
A stellar is a kind of black hole, of which mass can be up to 20 times more than the sun
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Answer: A. of which its mass can be up to 20 times more than that of the sun
Standard evaluation according to engineering and computational science principles.
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