If I'm not mistaken, its a fused run-on sentence. A comma splice is where there is an unneeded comma, and it isn't a simple as it contains a conjunction.
Answer:
Britain
English is a West Germanic language that originated from Anglo-Frisian dialects brought to Britain in the mid 5th to 7th centuries AD by Anglo-Saxon migrants from what is now northwest Germany, southern Denmark and the Netherlands.
Explanation:
Answer:

Explanation:
Nancy only believes that her brother is in Paris. Even if he is in Paris or he is not, Nancy cannot know for sure.