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B. A treaty banning nuclear tests.

for sure is B

B

Explanation:

a treaty banner nuclear test

the  equal rights amendment  (era) states: "equality  of  rights  under the law shall not be denied or abridged by the united states or by any state on account of sex." congress first introduced the era in 1923, but the campaign for ratification took off in the 1960s during the  civil rightsmovement.

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse