What is the difference between due care and due diligence?

What is the difference between due care and due diligence?

A.
Due care is the continual effort of ensuring that the right thing takes place, and due diligence is the continual effort to stay compliant to regulations.

B.
Due care and due diligence are in contrast to the "prudent man" concept.

C.
They mean the same thing.

D.
Due diligence is investigating the risks, and due care is carrying out the necessary steps to mitigate these risks.

Explanation:
Due care and due diligence are legal terms that do not just pertain to
security. Due diligence is going through the necessary steps to know what a company
or individuals actual risks are, and due care is carrying out responsible actions
to reduce those risks.