Why Does Stellar Main- Sequence Lifetime Decrease with Increasing Stellar

Multiple Choice

Why does stellar main- sequence lifetime decrease with increasing stellar mass?

A) It doesn't; higher mass stars have more hydrogen available for fusion, and thus have longer lifetimes.
B) Higher outward pressure prevents the core hydrogen from being replenished by the star's outer layers.
C) Higher core temperatures cause fusion to proceed much more rapidly.
D) Strong stellar winds cause higher mass stars to lose mass quickly.