In the Post-Main-Sequence Stages, High-Mass Stars Follow Quasi-Horizontal Paths in the H-R

question 40

Multiple Choice

In the post-main-sequence stages, high-mass stars follow quasi-horizontal paths in the H-R diagram.This means that

• A) their luminosity increases because they expand.
• B) their color gets redder because they expand.
• C) their surface temperature stays about the same because their luminosity stays about the same.
• D) they become supernovae immediately after leaving the main sequence.
• E) they collapse and become very small in size.

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