What character trait is required to undertake dangerous tasks, as mentioned?

Courage is indeed the essential character trait needed to undertake dangerous tasks. This is because engaging in activities that involve significant risks requires the ability to confront fear and act despite feelings of apprehension. Courage empowers individuals to face uncertain or threatening situations, which is especially vital when actions could lead to harm or adverse consequences.

While intelligence, luck, and experience can certainly contribute to successful outcomes in dangerous tasks, they do not address the fundamental need for bravery. Intelligence might help in strategizing or decision-making, luck can sometimes lead to favorable results, and experience can guide one's actions. However, without the foundational courage to initiate the task in the first place, these other factors would not hold as much significance. Ultimately, courage is the driving force that compels individuals to take on challenges that carry a high level of danger.