Idk go on google in find out
It's one of the following:
1) Social Science
2) Sociology
3) Anthropology
I'm leaning towards social science, but there are far too many variables in what constitutes a probable, correct response to this particular question.
I think you wanted to know whether the statement in question is true or false. Based on this assumption, i am answering the question. It is a true fact that the Danube River is navigable and thus connects many of the countries of the European continent. I hope that the answer has come to your help.