How did doves in congress officially call into question the u. s. presence in vietnam?

in 1967 and 1968 senator William Fulbright held hearings for war

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so. 

the answer is c, all the other options are things they are known for.

hope this ☺️