4.

Read the group of words.

in many areas of the world

Which sentence corrects the fragment by including it in the subject?

In many areas of the world, sheep outnumber people.

Cities in many areas of the world have hosted the Olympics.

Have you lived in many areas of the world?

The correct sentence that includes the fragment "in many areas of the world" in the subject is:

Cities in many areas of the world have hosted the Olympics.