How did the Russo-Japanese War show that America was gaining influence in the world? a. The United States helped Japan defeat Russia by supplying the Japanese with military advisors.

b. The Russians asked the United States to help them fight against the Japanese.

c. US President Theodore Roosevelt negotiated the peace treaty that ended the conflict.

The answer is        US President Theodore Roosevelt negotiated the peace treaty that ended the conflict.

Explanation: I hope this is the answer you are looking for

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !

i would say b. research typically uses a variety of sources