The _________ Railroad was a series of safe houses, way stations, water and food stops, and guides who helped enslaved people escape to freedom, usually to Canada.

Fugitive

Underground

Overground

Notorious

Underground

The correct answer is the "Underground" Railroad.

The correct answer is the "Underground Railroad".

To arrive at this answer, we can break down the question to identify the important keywords. In this case, the keywords are "safe houses," "way stations," "water and food stops," "guides," "enslaved people," "escape to freedom," and "Canada."

By considering these keywords, it becomes apparent that the question is referring to a network of locations and people that facilitated the escape of enslaved individuals to Canada for freedom. This network became known as the Underground Railroad.