I'm just really stuck on this question, please help!

Question 1 (10 points) A company set-up a petty cash fund with $800. The disbursements are as follows: $300 50 Office Supplies Shipping Postage Delivery Expense 30 $350 Answer the question below based on the above information. To create the fund, which account should be credited? Cash at Bank Postage Supplies Petty Cash