What evidence does the author provide that hockey today is a more dangerous sport than in the past?

The correct answer is D) Athletes are bigger and stronger.

Explanation: The author likely argues that the increased size and strength of athletes contribute to the overall intensity and physicality of the game, leading to a higher risk of injury compared to the past. The advancements in equipment and changes in playing style also enhance the game, but the physical attributes of players have a significant impact on its danger level.