What did catherine the great do to expand russia?

During her reign, Catherine amplified the borders of the Russian Empire to the south and the west, absorbing New Russia, Crimea, Ukraine, Belarus, Lithuania and Courland, at the cost of two major powers - the Ottoman Empire and the Republic of Two Nations. In all, it added about 518 000 kilometers to Russian territory

there is no chart here so no one can answer this.

the answer is prolly b