Final answer:
Kantians argue that rationality is the key characteristic of human beings that makes them deserving of respect and dignity.
Step-by-step explanation:
Kantians argue that rationality is the key characteristic of human beings that makes them deserving of respect and dignity. Immanuel Kant, a famous philosopher, believed that human beings have the unique ability to reason and make decisions based on rationality, which sets them apart from other living beings. According to Kant, it is through acting rationally and morally that we affirm our worth and dignity.