Mr Hamed having furniture manufacturing business in Ibri. Always he purchases wood (Raw materials) from Al Buraimi wood suppliers.On 1st May 2021 Mr Hamed purchased wood for OMR3000 on credit and paid OMR 1000 immediately. For the remaining amount Mr Hamed gave written promise to the supplier to pay that amount on 31st December 2021. The written promise given by Mr Hamed to the supplier is known as: a. Receipt O b. Short-term notes receivables c. Short term notes payables d. Invoice