Which of the Following Illustrates an Effective Critique of a Co-Worker's

Which of the following illustrates an effective critique of a co-worker's performance?

A) "Well, if you weren't so interested in going to night clubs, you might get to work on time once in a while."
B) "I depend on you to help me answer these phones. When you showed up late last week, we missed ten important calls."
C) "I sure hate it when you show up late."
D) "Last week, you were late three times, you didn't finish filling out all the customer reports, and you forgot to lock the file cabinets, too."