10. Shahid orders a pizza by telephone from \"Speedy Pizza" and tells the person with whom he places the order that he will pay cash on delivery. Which of the following would constitute valid consideration? a. Placing the call b. Answering the call c. Promising to pay for the pizza \"cash on delivery" d. The actual act of handing over the money at the time of delivery e. Acceptance of the delivery of the pizza just as Shahid, at the same time, reaches into his right shirt pocket to see if the cash is there