Question

"Due diligence" means "expected or required behaviour" (or "behavior", depending on the spelling zone you happen to live in).

So your teacher is expecting you to write a little essay, perhaps, on what is the expected behaviour of a person wishing to be humble and responsible.

Forgive me if I am getting this wrong, but when I was at school, asignments of this type were commonly given to those pupils who had behaved in the opposite fashion.

What I suggest you do is look up the words "humble" and "responsible" in a dictionary. Then, think about what kind of behaviour you would expect from a humble and responsible person. Finally, write it down in reasonably neat handwriting (or maybe you are supposed to type it?) and give it to your teacher.

That's a very general question/assignment. Usually due diligence is situationally based-the expectations of what is minimally acceptable and considered "due diligence" change based upon the needs introduced by each specific situation.

I'd ask my teacher to clarify and specify a situation, or ask him/her if I could choose my own situation or scenario- you could address due diligence in moral or ethical behavior toward those who are less fortunate, environmental concerns, as a parent, sibling, employee...do you see how each situation calls for a very different response?

Responsibility and humbleness in all aspects of life is just too broad, and it doesn't really even make sense because to practice due diligence in responsible and humble behavior cannot be static-it depends on ones role and the situation they are placed in.

What a silly question.

"What does due diligence amount to for one wishing to be a responsible - and humble - person?"

You can answer anything you want, and if he says you're wrong you'd probably do better if you disregard him as much as you can.

it amounts to his to-do list