Which of the following statements best describes how this object may have formed?

A. a supernova explosion, probably from the late-stage evolution of a high-mass star
B. a high-temperature star, formed by nuclear fusion
C. material accumulated into a sphere because of gravity, and underwent nuclear fusion of hydrogen
D. accumulation of mass from an interstellar cloud with pockets of high-mass material becoming stars


Answer: B

Environmental & Atmospheric Sciences

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