Awareness of Antarctica's importance has grown because of its effect on all of the following EXCEPT:

O A) Earth's climate
O B) sea life
O C) rising sea levels
O D) ozone

Who ever answers first gets ! trade in the vedic age led to a.the rise of kingdoms because of the importance of controlling land and long-distance travel routes b.the building of an extensive system of roads because of the difficult terrain c.the creation of a large banking class because of the need to exchange different currencies d.the development of a centralized government that controlled the economic decisions of its people