His cabinet, they advice the president.
I think the answer to this is letter B
Invasive species of flora and fauna and communicable diseases were a byproduct of the Colombian Exchange
Answer:
Among the other achievements of Reconstruction were the South's first state-funded public school systems, more equitable taxation legislation, laws against racial discrimination in public transport and accommodations and ambitious economic development programs (including aid to railroads and other enterprises).
Explanation:
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