Choice "D" is correct. Leasing rather than purchasing operating facilities results in reduced (or at least delayed) expenditures, which is a mitigating factor in a going concern situation.
Choice "b" is incorrect. Mitigating factors in a going concern situation include plans to dispose of assets, plans to borrow money or restructure debt, plans to reduce or delay expenditures, or plans to increase ownership equity. Repurchasing stock is an outflow of cash that would reduce ownership equity; as such, it is not a mitigating factor.
Choice "c" is incorrect. Mitigating factors in a going concern situation include plans to dispose of assets, plans to borrow money or restructure debt, plans to reduce or delay expenditures, or plans to increase ownership equity. Issuing stock options does not fall into any of these categories and would not be considered a mitigating factor.
Choice "a" is incorrect. Mitigating factors in a going concern situation include plans to dispose of assets, plans to borrow money or restructure debt, plans to reduce or delay expenditures, or plans to increase ownership equity. Accelerating the due date of an existing mortgage would increase expenditures, and therefore would not be a mitigating factor.