Why is it important to recognize personal obstacles when crafting a code of ethics?

$($Search Chapter $4)$

a$.$ Identifying personal obstacles is the first step to managing them and keeping them out of the decision$-$making process.

b$.$ Personal obstacles should be built into the code since they are part of who we are.

c$.$ Personal obstacles help to highlight what is most important in one's code of ethics.

d$.$ Personal obstacles define our commitment to integrity.