Which of the following would prevent japanese intervention in its neighboring island of the philippines?

the gentlemen’s agreement
the roosevelt corollary
the root-takahira agreement
the treaty of portsmouth
the teller amendment

I believe the answer is: the Root-Takahira Agreement

In the Root-Takahira Agreement, The united states government agreed to let go of American influence in China and not intervene in Japanese's effort to invade China. In return, the Japanese government had to hand over Philippines' territory to united states.

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

ok so u have2 basically