<p>On page 876, #3</p>
<p>No biographer can attest to absolute accuracy in documenting the activities of his or her (subject, this biographer of Cesar Chavez is no exception.)
A- as it is
B- subject, and this biographer of Cesar Chavez is no exception.
C- subject; this biography of Cesar Chavez is no exception.</p>
<p>Why is it B not C?</p>