As a Low-Mass Main-Sequence Star Runs Out of Fuel in Its

question 16

Multiple Choice

As a low-mass main-sequence star runs out of fuel in its core, it grows more luminous. How is this possible?

• A) It explodes.
• B) It begins to fuse helium in the core.
• C) The core expands as it runs out of fuel.
• D) The core shrinks, bringing more hydrogen fuel into the fusing region.
• E) Convection takes place throughout the interior, bringing more fuel to the core.

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