Final answer:
Tom's negative attitude towards teammate Rena will not likely affect team dynamics if Rena is unaware. However, if she is aware, it may lead to tension and lowered team morale, impacting collaboration.
Step-by-step explanation:
Tom's expression of a negative attitude towards Rena will probably not affect the competitive dynamics of the team. If Rena is unaware of Tom's feelings, it may not impact her own performance or the overall team chemistry. However, if Rena is aware, it could potentially create tension, lower team morale, and hinder collaboration. The conversation excerpt provided, involving Tom and Claire, suggests a nuanced relationship that is separate from team dynamics and does not directly inform on the impact of Tom's attitude towards Rena in a team setting.