What is ROE of a company of one accounting year, and what is (are) the source document(s)?

Group of answer choices

1) ROE is the ratio of the Net Profit over the Average Equity Capital. The calculation requires beginning & ending Balance Sheets only.

2) ROE is the ratio of the Net Profit over the Average Equity Capital. The calculation requires beginning & ending Income Statements only.

3) ROE is the ratio of the Net Profit over the Average Equity Capital. The calculation requires the current Income Statement and the Balance Sheet only.

4) ROE is the ratio of the Net Profit over the Average Equity Capital. The calculation requires the current Income Statement and two consecutive (=beginning & ending) Balance Sheets.