Answer:
C) Fire was a tool that helped modern humans to displace Neanderthals in Europe.
Explanation:
In the given passage, it is mentioned that the early humans left Africa about 50,000 to 60,000 years ago to Europe. There they encountered with the resident Neanderthals.
By the help of fire, which they knew how to use , have helped them to cope with the coldness at Europe and also helped to fight and displace the native Neanderthals from Europe. Thus fire was used as a tool by the early people to fight against the Neanderthals in Europe.
Thus the answer is
C) Fire was a tool that helped modern humans to displace Neanderthals in Europe.