Is the group of words a sentence or a run-on sentence?   some people don't like to travel very far beyond their own neighborhoods.   a. run-on   b. sentence

It is not a run on sentence.

Hello!

The group of words above is a sentence. This is considered a sentence because it is one independent clause. If this were to be a run-on, it would be composed of two independent clauses (two groups of words that would each be their own sentence).

I hope this helps you!