Mali and Shanghai wealth by controlling the
trade of gold, ivory, and salt across the Sahara
Desert.
Cuzco (Cusco) Would be your answer :). Hope this helps!
Time magazine has pointed out few times that featuring someone on their cover does not mean any endorsements of this person's doing, but his/her contribution or deeds that made a huge impact on the world. Hitler was chosen because of the Munich Agreement that shattered many nation's diplomatic alliances.
I would say D, because technology can record when items are being paid for and they then leave the store's inventory at the same time.