Why were the Japanese and the Russians fighting for control of Manchuria?

a. For the strategic military position

b. For the strong ties to the Chinese people

c. To show superior strength in world affairs

d. To have access to the Chinese trade

(It is NOT A!)

I believe it is the last option: To have access to the Chinese trade

Explanation:

The Russo-Japanese war which lasted a year from 1904 - 1905 was fought between Russia and Japan. Since Russia's ports become nonoperational during the winter, it was seeking a warm port to keep trading.