The correct answer is C. a country charges a special tax on the foreign trucks that has through its territory to deliver cargo into other countries
The Ottoman Empire conquered the capital of the Byzantine Empire, Constantinople, in 1453 and controlled all the regions that used to be part of the Byzantine territories. Since then, the Ottomans started to charge special taxes on European merchant caravans that went through Anatolia and the Eastern Mediterranean Sea in order to get access to Eastern products like Indian spices. This policy pushed European powers to look for alternative routes to get to Eastern markets and this particular issue boosted the age of exploration. Portugal financed trips surrounding Africa to get to India and the Spanish crown financed a trip to circumnavigate the globe, which would lead to the discovery of the Americas.