It's an adjective in that sentence.<span />
Answer: Option (A).
Explanation:President Roosevelt believes that other nations should adopt the U.S Bill of Right. He believes that adopting the U.S bill of right will make the future secure. Adoption of the four essential human right according to Roosevelt will make the world a better a place. Freedom of speech, freedom of religion , freedom from wants and freedom from fear. Roosevelt is of the opinion that it is a definite basis for a kind of world attainable in our time and generation as it is the opposite of the new order of tyranny.
My best guess would be A.
