Respuesta :
The necessity for raw materials to drive Japan's industries drove the country's expansion across the Pacific in the 1930s. So, option (b) is the reason behind the expansion.
What caused the Japanese expansion?
In the 1930s, the Japanese Empire launched an aggressive expansion in response to a lack of natural resources and the desire to become a significant worldwide force.
Although the country's desire for products and resources was the most essential cause for Japanese development following the Russo-Japanese War, there were other factors as well.
For more information about Japanese expansion, refer below
https://brainly.com/question/15268880