In general, when we compare the mass of a galaxy or cluster of galaxies to the amount of light it emits (that is, when we look at it mass-to-light ratio), we expect that
A) the higher amount of mass relative to light (higher mass-to-light ratio), the lower the proportion of dark matter.
B) the higher the amount of mass relative to light (higher mass-to-light ratio), the greater the proportion of dark matter.
C) the amount of light should be at least one solar luminosity for each solar mass of matter (mass-to-light ratio less than or equal to 1).
D) the higher the amount of mass relative to light (higher mass-to-light ratio), the older the galaxy or cluster.
B
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