The correct formula to determine liabilities is:
Liabilities = Assets - Owner's Equity
This is derived from the accounting equation, which states:
Assets = Liabilities + Owner's Equity
Therefore, if you want to isolate liabilities, you can rearrange the equation to solve for them. None of the options you provided correctly state this relationship, but it's important to focus on the fact that liabilities are equal to the difference between assets and owner's equity.