What was the north's initial strategy in the civil war?

Their initial plan was to use the Anaconda Plan.

Explanation: This was used to blockade all Southern states from receiving supplies and food from other places, thus forcing the South to surrender.

Scott's "great snake" would blockade the South's ports and control the Mississippi River

Explanation: This was the Anaconda Plan. The North, however, was unable to control the Mississippi for several years.

first second and third

explanation:

i believe the answer is d.