Hello, the answer to this question is A, hope this helps!
Answer:
Because children believe almost anything, and for. them to be Astonished by that is dumb
The parents may feel that slavery is okay to a certain extent because there parents raised them that way and they May have grandparents that owned some "slaves." Now children's attitudes might be different because nowadays you encounter lots of nationalities and races in the USA and were starting to adapt and open up to them wanting to know more about what they do or why they do something different than you might do.
