40. What is the main idea of the article? (A) The Norwegian team struggled to perform due to heavy rain and track challenges. (B) Younger athletes outperformed veterans, showcasing a shift in dominance in the sport. (C) Tarjei Boe's precise shooting and determination secured his win in the 15 km Mass Start despite tough conditions. (D) Johannes Thingnes Boe overshadowed his brother's success with his own performance.