Answer:
Option B.
Step-by-step explanation:
The goal of the war changed from saving the Union to saving the Union and eliminating slavery, is the right answer.
Issued by the then U.S. President Abraham Lincoln and came into force on 1st January 1863, the Emancipation Proclamation was administrative promulgation and executive order. This proclamation changed the legal status of around 3.5 million enslaved African Americans from Slaves to free. In this proclamation, it was asserted that as soon as a slave fled the command of the Confederate state, either by the advance of national force or by running away, the slave will be free.in December 1865. In this way, it changed the aim of the war because it moved from war to protect the Union into a struggle for human freedom by emancipating slavery.