I don't like the way this is worded. An allegory is a short type of poem. Not a genre. But the answer is D. If you look at general poetry structure, it tells a vivid story in a confined manner.
Answer:
The author describes a hit at a baseball game and the data collected from it.
Explanation:
The physics of baseball means the behavior of a hit in terms of velocity , gravity, projection and other physics related attributes during game play. To introduce the physics assessment cited with the baseball game, The author made reference to the game between the Kansas City royals and the Detroit Tigers. He used this to explain some of the physics related phenomeon and the required data including speed of ball, the angle of travel and so on. Then, he explained some natural laws such as the Newton's law, energy and momentum.