According to Aldo Leopold, what defines ethical behavior?

Aldo Leopold, a renowned environmentalist and father of wildlife management, emphasized the importance of integrity and personal responsibility in ethical behavior. The idea of doing the right thing when no one else is watching reflects a deep understanding of personal ethics, which goes beyond external perceptions or the presence of laws. It highlights an intrinsic moral compass, suggesting that true ethical behavior stems from one's character and values rather than compliance with regulations or the fear of being caught.

In this context, choice C aligns perfectly with Leopold's philosophy, as it underscores that ethical principles should guide behavior regardless of external scrutiny. This approach fosters a more profound sense of responsibility toward the environment and wildlife, as individuals act out of genuine respect rather than obligation. Adhering to one's ethics when unobserved speaks to authenticity and sincerity in one's actions, which is a key tenet of environmental stewardship championed by Leopold.

The other options focus on external influences—like the presence of others, adherence to laws, or reporting crimes—rather than the internal guiding principle, which is central to ethical behavior according to Leopold's views.