Final answer:
Buddhism is the religion practiced in East Asia that is centered around the Four Noble Truths, teaching moral living and the path to enlightenment.
Step-by-step explanation:
The religion practiced in East Asia that focuses on the Four Noble Truths is Buddhism. This tradition teaches nonviolence, honesty, selflessness, tolerance, and moral living. Buddhism is built upon the foundation of the Four Noble Truths which explain the nature of suffering and the path to liberation from it. According to Buddhist teachings, suffering stems from ignorance and desire, and it can be overcome through the Eightfold Path, which is also known as 'The Middle Way.' This method to enlightenment includes wisdom, ethical conduct, and meditation. Buddhism, originating from the teachings of Siddhartha Gautama, who later became known as the Buddha, is a major world religion with a significant number of followers in Asia, including East Asia.