Which choice uses a colon correctly?

Many people travel: to Spain.

Spain: is where my family is from.

Have you ever traveled to: Spain?

I would like to learn more about the place our family came from: Spain.

I would like to learn more about the place our family came from: Spain

Explanation:

Sentences always begin with a capital letter and end in either a full stop, exclamation or question mark. A complete sentence always contains a verb, expresses a complete idea and makes sense standing alone. In this case, as you read the other sentences to yourself, you will notice that they do not sound right, because the main idea of the sentence was not completed.