The response that best describes how the Fourteenth Amendment extended and limited civil rights to Black Americans is:
The Fourteenth Amendment defined citizenship in the U.S., made all citizens equal before the law, and guaranteed due process to all citizens; however, it did not extend voting rights to Black Americans or prevent the separate but equal doctrine.
This response accurately reflects the key aspects of the Fourteenth Amendment, which includes defining citizenship and establishing equal protection under the law, while also acknowledging the limitations regarding voting rights and the separate but equal doctrine.