Your boss has asked you to e-mail a client to let her know that the company will be late in delivering a report she's requested. Which of the following is the appropriate way to let her know?
A. I'm sorry, but the delivery won't be made on time by us.
B. I regret to inform you that we will be unable to deliver the report as scheduled.
C. There ain't no way we can deliver the report on time.
D. We can't get the report to you on time. Sorry.