I need help figuring out what my answer is missing. The website is saying my answers are correct, but incomplete.

1. Prepare journal entries for each transaction. 2. Enter the ending balances from December 31 as the respective beginning balances for January 1 of the current year. Record in the T-accounts the effects of each transaction. Label each using the letter of the transaction. 3. Prepare an unadjusted income statement for the current year ended December 31. 4. Compute the company's net profit margin ratio for the current year ended December 31. \begin{tabular}{|l|r|} \hline \multicolumn{2}{|c|}{ UPS } \\ \hline \multicolumn{2}{|c|}{ Income Statement (unadjusted) } \\ \hline \multicolumn{2}{|c|}{ (in millions) } \\ \hline Reven the Year Ended December 31 (Current Year) \\ \hline Delivery service revenue & $15,794 \\ \hline & \\ \hline Expenses & \\ \hline Rental expense & 5,686 \\ \hline Repairs expense & 1,204 \\ \hline Wages expense & 13,526 \\ \hline Spare parts, supplies, and fuel expense & 7,300 \\ \hline & \\ \hline & \\ \hline & 18,078 \\ \hline Total expenses & \\ \hline Net income & \\ \hline \end{tabular} Following are selected account balances (in millions of dollars) from a recent UPS annual report, followed by several typical transactions. Assume that the following are account balances on December 31 (end of the prior fiscal year): These accounts are not necessarily in good order and have normal debit or credit balances. (Note: Because these are not all of UPS's accounts, these will not balance in a trial balance.) Assume the following transactions (in millions, except for par value) occurred the next fiscal year beginning January 1 (the current year): a. Provided delivery service to customers, who paid $9,890 in cash and owed $35,904 on account. b. Purchased new equipment costing $3,774; signed a long-term note. c. Paid $11,264 cash to rent equipment and aircraft, with $5,686 for rent this year and the rest for rent next year (a prepaid expense). d. Spent $1,204 cash to repair facilities and equipment during the year. e. Collected $34,485 from customers on account. f. Repaid $320 on a long-term note (ignore interest). g. Issued 200 million additional shares of $0.01 par value stock for $33 (that's $33 million). h. Paid employees $13,526 for work during the year. i. Purchased spare parts, supplies, and fuel for the aircraft and equipment for $11,664 cash. j. Used $7,300 in spare parts, supplies, and fuel for the aircraft and equipment during the year. k. Paid $1,124 on accounts payable. I. Ordered $122 in spare parts and supplies