A third party is a part that doesn’t fit the criteria of belonging to the two dominant parties of the US. In simple terms, it is any party that isn’t the two dominant parties (republican and democratic).
Answer:
Explanation:
It cannot be C as Russia actually suffered the most casualities due to their poor military capabilities.
It cannot be A as the Allied Powers had more casualties.
It cannot be D as Britain and France combined had more casualties.
It has to be B as Austria-Hungary did lose more casualties than France.