Miners were drawn to nevada's comstock lode by the discovery of there in the 1850s

d is the best answer for this question.

north atlantic treaty organization.

the answer is a new goverment.

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.