For your us history class, you are assigned to give a speech about how the us economy has significantly changed in the past 200 years. which us historical event would be most effective to reference in your speech?
a)flooding of new orleans, louisiana, after hurricane katrina
b) discovery of gold in california and the arrival of prospectors
c) development of urban sprawl around major metropolitan areas
d)transformation of midwest industrial towns into the rust belt
e) overthrow of the hawaiian monarchy and the us annex of hawaii

by 1890, the united states had by far the world's most productive economy. american industry produced twice as much as its closest competitor--britain. but the united states was not a great military or diplomatic power. its army numbered less than 30,000 troops, and its navy had only about 10,000 seamen. britain's army was five times the size of its american counterpart, and its navy was ten times bigger. the united states' military was small because the country was situated between two large oceans and was surrounded by weak or friendly nations. it faced no serious military threats and had little interest in asserting military power overseas.

is there options? or is it random words?

explanation: