The gulf of tonkin resolution, passed in 1964, gave the president which power?

It gave the president of the United States the power to defend against any aggressive acts aimed at the U.S.  This was the beginning of American Involvement in the Vietnam War which would be the first war where America was defeated.

c]extended voting rights to african americans

i believe the correct answer is option b. most eastern european nations joined nato.

though i could be wrong, option d. the eastern european nations were granted complete independence, would be another choice.

hope this ! : )