In“how do we tell right from wrong” based on your current thinking about what Joe should do which level of Kohlberg‘s stages or moral development best describes you why

Conventional Moral Development Stage.

Explanation:

Based on my current thinking about what Joe should do, the level of conventional moral development best describes me. Conventional stage of moral development states that individuals make distinction between right and wrong according to the greater good of the society/community.

Likewise, I too make decisions mostly according to the rules and regulations laid down by the community. Everyone should live according to the law and order and should support one another to do the right thing for the common good of the society.

the answer can be "credo" it means to believe = the word credo means "an official statement of beliefs"