You are responding to an email about a missing shipment a key client had ordered. You find that your shipper has made an error and sent it to the wrong address.

What should you begin your message with?

a$.)$

You would like confirmation immediately upon receipt of the new shipment.

b$.)$

The client has been a customer for a long time, and you appreciate their loyalty.

c$.)$

A new shipment is being sent with expedited shipping at no cost to the customer.

d$.)$

There have been quite a few missing shipments lately due to logistical problems.