The validity of the New Testament

The validity of the New Testament. You meet a person on the ski lift at a local ski area, and in making small talk, you mention that you are taking college classes in the Bible. This new acquaintance is not trying to be antagonistic, but nevertheless, brings up something that he had heard regarding the “corruption” of the Bible. Upon further inquiry, you discover that this man has taken for granted the argument that the New Testament was corrupted over the centuries through the transmission process, and is thus unreliable. How might you answer him?