I need help with figuring out what is missing. It says the question is incomplete

[ine ronowing inrormation applies to the questuons aispiayea Deiow.] The following is the adjusted trial balance of Sierra Company. The Retained Earnings account balance was $9,500 on December 31 of the prior year. QS 3-22 (Algo) Preparing financial statements LO P5 Required: (1) Prepare an income statement for the year ended December 31. (2) Prepare a statement of retained earnings for the year ended December 31 . Prepare an income statement for the year ended December 31 . Prepare a statement of retained earnings for the year ended December 31 . Owner made no investments during the curi period