A．making an offer B．solving a problem C．making a complaint D．req

Man: Hello. Sam. This is John speaking. I saw your mail just now, which said you would like payment prior to delivery, I quite understand, since this is my first order. But I prefer payment after delivery, because these goods are very expensive and it’s a large order. If I give an advance payment, I will have money trouble and it will take half a year to sell the goods. You know, I just have a small company. Can you consider my situation and let me pay in installments?