Choose the correct meaning of the idiom or phrase: To keep the wolf from the door. 

Option A is the right answer because 'keeping the wolf at bay' means 'having enough money to avoid hunger or starving.' As a result, option A is the right interpretation of the supplied phrase.

Option B is inaccurate since 'distinguishing oneself' implies doing something remarkable or excelling. As a result, option B is not the accurate interpretation of the supplied phrase.

Option C is erroneous since 'to be earnest' implies sincerity. As a result, option C is not the accurate interpretation of the supplied phrase.

Option D is erroneous because 'confusing situation' is synonymous with 'chaos or disarray.' As a result, option D is not the accurate interpretation of the supplied phrase.