"Diligent plus opportunities and talents" is the successful experience of many successful people. Hard work is a prerequisite for success, but between using opportunities and improving talents, should we cultivate talents first or grasp opportunities first? Which of the following is a hypothetical premise for the questioner? ['Talent and opportunity are mutually reinforcing.', 'Hard work is not a requirement for success.', 'Opportunities and talents are difficult to obtain at the same time.', 'Opportunity and talent are causal.']