Which of the Following Is True About Textbooks in the Past

Multiple Choice

Which of the following is true about textbooks in the past?

A) They have been used to teach the importance of what it is to be an American.
B) They have omitted or distorted the contributions of minority groups.
C) They have always been nonpartisan and nonsectarian.
D) Both they have been used to teach the importance of what it is to be an American and they have omitted or distorted the contributions of minority groups