Which of the following describes a central tenet of Buddhism?

The central tenet of Buddhism emphasizes a focus on moral truths, which is clearly embodied in the Five Precepts. These precepts serve as ethical guidelines for followers, promoting values such as non-harming, honesty, and respect for others. This framework is essential for personal development and spiritual growth within the tradition, reflecting the importance that Buddhism places on ethical conduct as a path towards enlightenment.

In contrast to other options, the notion of unique rites of passage observed at birth does not pertain specifically to Buddhist practice; instead, rites vary widely across cultures. Similarly, the reliance on a hierarchical clergy for spiritual guidance is more characteristic of other religions, such as Christianity or Catholicism, where priestly roles are emphasized. Lastly, devotion to a single deity is not a defining characteristic of Buddhism, which is fundamentally non-theistic and does not center around worship of a singular divine being. Thus, option B accurately encapsulates a core aspect of Buddhist philosophy, making it the correct choice.