Refers to standards of moral behavior.
a) legality
b) responsibility
c) integrity
d) ethics

This is a tricky question!

two of the answers relate to morals: Integrity and Ethics (Legality refers to what is sanctioned by law and responsibility is whether we take care of things we should be taking care of, such as our children).

The difference is, ethics is the part of philosophy that investigates morals.
Integrity is the quality of upholding moral standards: and I think this is the correct answer.

What’s the

Bob: coke is baby pandas.jim: what? how do you figure that coke is baby pandas? bob: because this book says so.jim: how do we know the book is correct? bob: because it says that coke is baby pandas.jim: how does that prove the book's accuracy? bob: because it's statement involving coke and baby pandas is correct, therefore it is accurate.jim: how do we know that it's correct? bob: because we have concluded that the book is accurate, and therefore the statement is correct.therefore, coke is baby pandas.