Answer:
From the excerpt the answer is to help in the battle and to free enslaved persons.
Step-by-step explanation:
from the excerpt I read, Harriet a nurse engaged in helping second south carolina volunteers as a spy. she was able to navigate her way through rebel territories and return with valuable informations about the strength of the enemy.
together with a colonel, plans that involved freeing enslaved persons were developed and also how to stop supplies of the other side. This saw a huge success as the enslaved regained their freedom.
therefore the mission of the second south carolina volunteers was to help in the battle and to free enslaved persons.