A general journal typically contains the following five columns:
1. Date: the date on which the transaction occurred or was recorded.
2. Narration: a brief description of the transaction or event being recorded.
3. Folio: a reference number indicating the page number in the ledger where the corresponding account is being debited or credited.
4. Debit: the amount debited or charged to the account(s) involved in the transaction.
5. Credit: the amount credited or added to the account(s) involved in the transaction.
Therefore, based on the options provided, the correct answer is the first option: "date, narration, folio, debit, and purchases."