The correct answer is C, as Justice O'Connor was the first woman to serve on the Supreme Court.
Sandra Day O'Connor (born March 26, 1930) is a jurist from the United States. From 1981 to January 2006, she held the position of Associate Justice in the Supreme Court of the United States. She was the first woman to occupy a position in the Supreme Court. Due to her moderate approach to each case before the Court, Judge O'Connor was considered the deciding vote in many of the cases.