What was the period like in confucius developed his ethic and shared it with others

The most important of these teachings include jen, or “humaneness;” i, or “righteousness;” li, or “propriety/ritual;” and hsing, or “human nature.” Hsiao, or “filial piety,” is also a vital concept, one that is central for young people growing up in the Confucian tradition.

Explanation:

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

because it !