Hi! I just need a little help on some American government questions. It would be kindly appreciated if you could help. Thank you!

1) Which form of foreign aid involves many nations sharing a common goal and jointly contributing to foreign aid?
a) multilateral
b) project
c) tied
d) bilateral

2) Which diplomatic tool is often used to follow up on initial agreement?
a) accord
b) convention
c) executive order
d) alliance

3) Which of the following is a tool that the U. S. President can use on his/her own to affect foreign policy?
a) declare war
b) appointing an ambassador
c) making and approving treaties
d) approving foreign relations expenditures