In the Japanese war with the Russians, the answer is B. The Japanese gained valuable resources.
The Russo-Japanese War was fought between 1904 and 1905, and it was primarily over control of Manchuria and Korea. The war ended with Japan emerging as the victor, and it gained significant territorial and economic concessions from Russia. These included control of the Liaodong Peninsula, the South Manchurian Railway, and half of the island of Sakhalin. The war also marked the first time an Asian power had defeated a European power in modern times and was seen as a major turning point in global power dynamics.