Question

which are the oldest objects in the milky way?
globular clusters
spiral arms
cepheid variables
population i stars

Explanation:

Globular clusters are dense groups of stars. They are among the oldest objects in the Milky Way. Spiral arms are regions of star - forming activity and are not as old as globular clusters. Cepheid variables are a type of star used for distance measurements and are not the oldest objects. Population I stars are relatively young, metal - rich stars.

Answer:

globular clusters