If You Examine Many Main-Sequence Stars, the Lifetimes Are Different

Multiple Choice

If you examine many main-sequence stars, the lifetimes are different. As the luminosity of the star under consideration increases, the star's main-sequence lifetime:

A) is unaffected, as lifetime depends only on temperature and mass and not luminosity.
B) decreases because the star's fuel is being expended at a larger rate.
C) increases because larger luminosities imply larger masses.
D) decreases because larger luminosities go with smaller, hotter stars.