What places were the 4 most important ww2 conferences held at?

U.S.-British Staff Conference

(ABC-1)Washington, D.C.January 29 – March 27, 1941American, British, and Canadian military staffSet the basic planning agreement for the U.S. to enter the war

Atlantic Conference

(RIVIERA)Argentia, NewfoundlandAugust 9 – 12, 1941Churchill and RooseveltAtlantic Charter, proposal for a Soviet aid conference

First Moscow Conference

(CAVIAR)Moscow, USSRSeptember 29 – October 1, 1941Stalin, Harriman, Beaverbrook, MolotovAllied aid to the Soviet Union

First Washington Conference

(ARCADIA)Washington, D.C.December 22, 1941 – January 14, 1942Churchill, RooseveltEurope first, Declaration by United Nations

Explanation:

what are the others?

c is the correct answer for this question.