The answer is d
none of the others involved the US
Harsh and extremely cold winter was the main geographical factor that added to German losses at Stalingrad.
Russia is well-known for its cold winters and many people from Western Europe even nowadays complain about severe weather conditions while visiting this country. Thus, this is not surprising, that cold weather became a serious obstacle on the way of Germans.
<span>B. The route from England to west Africa involved the exchange of European materials and goods for African slaves to be sold in the Americas. is true of triangular trade</span>