Final answer:
James shows emotional intelligence by choosing option B, which acknowledges the stress his coworker feels in a supportive way, fostering a healthier work environment.
Step-by-step explanation:
James demonstrates emotional intelligence when he acknowledges the challenges faced by his coworker in dealing with demanding families. The most emotionally intelligent response is: B. Says to his friend, "Dealing with these demanding families can be stressful." This option reflects an understanding and validating approach, opening up a supportive dialogue without being confrontational or dismissive. It's a way of showing empathy and potentially offering help or support, contributing to a healthier work environment.