•this froze the number of strategic ballistic missile launchers at existing levels
• it provided for the addition of new submarine launch ballistic missiles only after an equal number of obsolete weapons were dismantled or destroyed
• negotiations lasted from november 17, 1969 until may 1972, ending when richard nixon and leon and per negotiations lasted from november 17, 1969 until may 1972, ending when richard nixon and leonid brezhnev signed the anti-ballistic missile treaty

question: which set of cold war negotiations is being described by these statements

a-start i
b-salt ii
c-salt i
d-start ii

d is what i would go with

the war in the pacific

explanation:

in the 1800s, locomotives powered by steam made transportation faster and cheaper. the resulting rapid growth of railroads led to the connection of the atlantic and pacific railroad in oklahoma city in 1897.

in the last years of the century, the improvement of steam-based engines the expansion and growth of railroads. this growth increased when the companies started to build and expand, such as the atlantic and pacific railroad, which connected new mexico with california, and missouri with oklahoma. many of these new networks were built in oklahoma, and these changes transportation henceforward.