What was one of the assumptions that led to the agreements reached at the Washington Naval Conference?

Between 1921 and 1922, the world’s largest naval powers gathered in Washington, D. C. for a conference to discuss naval disarmament and ways to relieve growing tensions in East Asia.

In the wake of World War I, leaders in the international community sought to prevent the possibility of another war. Rising Japanese militarism and an international arms race heightened these concerns. As a result, policymakers worked to reduce the rising threat. Senator William E. Borah (R-Idaho) led a congressional effort to demand that the United States engage its two principal competitors in the naval arms race, Japan and the United Kingdom, in negotiations for disarmament.

The answer on the test would be A.