Chelsea and Alexander are coworkers who have started to develop romantic feelings for one another. According to the guidelines offered by human resource experts Cindy Schaefer and Thomas Tudor, what should Chelsea and Alexander keep in mind to maintain workplace professionalism?

A. Engage in public displays of affection, but only after asking your manager for permission.
B. When sending messages to each other using the company email, do not copy coworkers.
C. Take long lunches together; it boosts your mood and, in turn, enhances company morale.
D. Do not call in sick on the same day; people will suspect you are lying.

Answer: D