Final answer:
Low trait anxiety is associated with better coping in high-pressure situations. Trait anxiety is a stable personality characteristic, but it can be influenced by situational factors. High trait anxiety is not always detrimental to athletic performance.
Step-by-step explanation:
The statement that is true according to research concerning trait anxiety and young athletes is b) Low trait anxiety is associated with better coping in high-pressure situations.
Trait anxiety is a stable personality characteristic (c), meaning that individuals tend to have consistent levels of anxiety across different situations. However, trait anxiety can be influenced by situational factors (d). For example, performing in a high-pressure sports competition may increase an athlete's anxiety levels.
High trait anxiety is not always detrimental to athletic performance (a). While excessive levels of anxiety can negatively impact performance, moderate levels of anxiety can actually enhance performance by increasing motivation and focus.