听力原文：W Cheryl, were you able to determine which shipping company is the cheapest？
W No, I asked several shipping companies and made a list of possible ones. I'm not sure which one is the best because it depends on the terms of the contract.
W Could you call the sales department and check if they have resolved that yet？ We need to get that information as soon as possible, so that we can make a budget in details.
W Yes, I'll call them right away.
What did Cheryl do？

A. Sent a package to a client
B. Researched a delivery company
C. Prepared for an agreement
D. Booked a business trip