As a result of the nuclear test ban treaty,
a. the soviet union ended all nuclear testing
b. nearly 40 countries ended aboveground nuclear tests
c. relations between the united states and the soviet union worsened
d. the united states and the soviet union ceased to communicate

The correct answer is B. As a result of the Nuclear Test Ban Treaty, nearly 40 countries ended aboveground nuclear tests.

The Comprehensive Nuclear-Test-Ban Treaty is an international treaty, signed for the first time on September 10, 1996, which prohibits the conduct of nuclear tests in and by the signatory countries.

The treaty was opened for signature in New York on September 24, 1996, when it was signed by 71 states, including five of the eight with nuclear capacity. Currently, the CTBT has been signed by 178 countries out of a total of 195, and ratified by 144. On January 16, 2007 ratification of the treaty was completed by all European countries, with the ratification of Moldova.

the war in the pacific

explanation:

d) the constitution rights of native americans and their right to self-government on reservations