Final answer:
The sentence that correctly uses the word agony is: Our baseball game came to an abrupt halt in the second inning, when a flash of lightning sparked just beyond the trees.
Step-by-step explanation:
The sentence that correctly uses the word agony is:
C Our baseball game came to an abrupt halt in the second inning, when a flash of lightning sparked just beyond the trees.
This sentence uses the word agony correctly because it describes a situation where a baseball game is abruptly stopped due to a sudden and intense event, namely a flash of lightning. The word agony is often used to convey extreme physical or emotional pain, and in this sentence, it emphasizes the abruptness and intensity of the halt in the game.