Consider a Large Molecular Cloud That Will Give Birth to a Cluster

Multiple Choice

Consider a large molecular cloud that will give birth to a cluster of stars. Which of the following would you expect to be true?

A) All the stars in the cluster will be of about the same mass.
B) All the stars in the cluster will have approximately the same luminosity and surface temperature.
C) All the stars in the cluster will become main- sequence stars at about the same time.
D) A few massive stars will form, live, and die before the majority of the star's clusters even complete their protostar stage.