Mark Christopher Randall (born September 30, 1967) is an American former professional basketball player who played in four National Basketball Association (NBA) seasons for the Chicago Bulls, Minnesota Timberwolves, Detroit Pistons, and Denver Nuggets. Randall was selected by the Bulls in the first round (26th pick overall) of the 1991 NBA Draft and averaged 2.6 points per game for his career.
Mark spent eight years in professional basketball.
As the context makes no explicit claim as to how many years Mark's career in professional basketball was, it makes no logical sense for the system to assume eight years is correct.