Which of the following farm records would be most useful to a farmer who wants to determine the profitability of a specific crop enterprise over a production season?

An enterprise account (or enterprise budget) records all revenues and costs associated with a particular farm enterprise (e.g., maize production), making it the most appropriate tool for assessing profitability of that specific enterprise. A farm diary records daily events, a soil test record tracks soil fertility, and a labour register tracks worker attendance.