Question

which sentence correctly uses a colon to introduce a list?
brittany enjoys many sports, such as: basketball, ice hockey, and softball.
the students going on the trip are: drew, julio, aasha, and felicity.
for dinner, i think that we should make: roasted chicken, mashed potatoes, and green beans.
my school offers four science classes: chemistry, biology, physics, and earth science.

Explanation:

A colon is used to introduce a list after a complete independent clause. In the first three options, the part before the colon is not a complete independent clause. In the fourth option, "My school offers four science classes" is a complete thought, and then the colon properly introduces the list of science - classes.

Answer:

My school offers four science classes: chemistry, biology, physics, and earth science.