In the Emancipation Proclamation,President Abraham Lincoln Declared Freedom for Slaves

In the Emancipation Proclamation,President Abraham Lincoln declared freedom for slaves

A) in the slave states that had remained loyal to the Union.
B) that joined the Union military.
C) throughout all states that existed as part of the United States prior to the Civil War.
D) in the parts of the Confederacy still in rebellion.
E) in the parts of the Confederacy already under Union control.