Question

which type of star cluster forms from tightly packed groups of older stars?
binary
eclipse
globular
open

Explanation:

Binary stars are pairs of stars orbiting a common center of mass. Eclipse is related to the phenomenon when one celestial body moves into the shadow of another. Open star clusters are more loosely - packed and contain relatively younger stars. Globular clusters are known for being tightly - packed groups of older stars.

Answer:

C. globular