What was demonstrated by the First Battle of Bull Run?

Question

(1 point)
Responses

that the North would win
that the North would win

that the South was better trained than the North
that the South was better trained than the North

that African American soldiers would be useful to the Union army
that African American soldiers would be useful to the Union army

that the war would be long
that the war would be long

Answer 1

that the South was better trained than the North