In the context of Morality 'what is good' is 'what is not-evil'.
Evil is related to human acts that are net-negative to the well being of the individual[s] and therefrom to humanity and thus is a threat to the preservation of the human species.
I would prefer to avoid 'right' or 'wrong' in the case of morality as it can be very misleading and do not progress morally.
In morality-proper, one do not choose to do what is right and avoid what is wrong but rather one develops one own inherent [innate] moral potential so that one will act morally spontaneously without any compulsion nor threat from an external rules, laws, authority.
In this case, one will develop the necessary impulse-controls to inhibit the inherent [innate] evil potential within oneself.
The expectation and enforcement of choosing to do right and not to do wrong is more of politics, customs, culture, etc. It is not morality-proper.