Concept:Spot cash is a term used when the buyer pays cash immediately and takes the goods away from the seller on the spot.Explanation:The buyer pays cash as soon as the goods are bought.The goods are released only after payment has been made.This is different from cash on delivery, where payment is made when goods are delivered later.It is also different from cash with order, where payment is made at the time of ordering.Therefore, this payment arrangement is a spot cash transaction.Answer:C. Spot cash