Answer:
D) Interpersonal Skills
Explanation:
Since the team has professionals of various specifications. Some are very experienced, some are freshers.
So, it is likely to increase the professional difference of opinions between the team members. Hence, it is very important for company members to be trained for Inter Personal skills. This would make them better understand & coordinate, cooperate with various team members, despite of their differences. The better unified team efforts would make their efforts better directed towards company common goals.