B. They often are about people who lead relatively ordinary lives and have not done anything famous.
Explanation:
Some modern biographies and autobiographies are different from classic biographies and autobiographies in terms of content because they often are about people who lead relatively ordinary lives and have not done anything famous.
This is because, classic biographies and autobiographies were usually done for important people so that ordinary people could read about their life. However, in recent times, autobiographies and biographies can be done for the common man.
