Factors of 110 by Prime Factorization
the prime factors of 110 are 2, 5, and 11 because it’s not a prime number
Danube River is the second biggest river in Europe, And carries cargo. That is why.
It's known as Colonialism
Based of the map, you can infer that it's D because if you look the rivers are running through multiple countries and act as a border for the countries of Germany, Austria, Hungary, etc.
hopefully this helps
