Which of the Following Findings Supports the Nature Argument of Leadership

Which of the following findings supports the nature argument of leadership?

A) Parental warmth was positively associated with leadership among young people.
B) Loss of a parent at an early age was associated with subsequent success as a leader.
C) 17 percent of the variance in leadership experiences was explained by previous work experience.
D) About 30 percent of the variance in leadership roles can be explained by genetic factors