Now you might remember the names of the seven wonders, but do you know why 'seven' was such an auspicious number in ancient cultures?

The correct answer to this open question is the following.

The 'seven' was such an auspicious number in ancient cultures because those civilizations consider it as a lucky number or divine number that is also mentioned in the bible in the creation story of "Genesis", in the Old Testament. That is the first book of the Old Testament when it is said that God created everything in seven days. Of course, it is a metaphoric way to express it. Some researcher of the bible says that the number seven appears constantly in many of its books.

your answer is

to dominate europe

and i know for a fact it can't be the others

d is the correct answer

~courtney