Congress Objected to the Readmission of Southern States to the Union

Congress objected to the readmission of Southern states to the Union under Johnson's plan because

A) the states had adopted Black Codes that limited the civil rights of freed slaves.
B) the states had been readmitted without consultation with Congress.
C) many former Confederates were elected to high political office in those states.
D) it feared that the restored South would be stronger than ever in national politics.
E) they feared that the South would just secede again if it didn't get its way.