Which one do I have it wrong?

Partial Question 21 2.5/3 pts For each statement below, identify which accounting element(s) it describes. You may use an accounting element more than once or not at all. Total past earnings not distributed to the owners Retained earnings Revenues Inflow of assets from the regular operating activities Obligations which must be met at some future date Expenses Assets That which will be used to generate future economic benefits Net income