In the Case Where a Large Number of Stars of Different

Multiple Choice

In the case where a large number of stars of different masses all form at the same time (e.g.,in a cluster of stars) ,what does the phrase initial mass function mean?

A) the mass of the largest star in the cluster divided by the mass of the smallest star
B) the mass of the original cloud of gas and dust that collapsed to form the cluster
C) the graph or equation relating the mass of each star to its luminosity
D) the number of stars that form at each mass