听力原文：W: Hello, this is Green Mail Order Service. How can I help you？
M: I'm calling to order a men's cashmere sweater from your mail order catalogue. The item number is S6489, and I want a large size one. How long will it take to deliver？
W: Let me see. We' II send it to you by courier this afternoon. You will probably get it by tomorrow afternoon. How do you want to pay？ Bank transfer, credit or cash on delivery？
M: I'd like to pay by bank transfer.
What is the purpose of the man' s call to the woman？

A. To complain about a sales clerk
B. To ask the number of an item
C. To withdraw some money
D. To place an order