Concept:Helena’s words reveal her sadness because Demetrius broke the loving promises he once made to her.
Explanation:This speech is made by Helena.
She says that the boy Love may break promises just as boys break their word in games.
Earlier, Demetrius swore strongly that he loved only Helena.
But when he saw Hermia, those solemn vows melted away like hail touched by heat.
The words “perjured” and “dissolved” show that his oaths were false and did not last.
Helena feels hurt, let down, and deeply disappointed by his change of heart.
Her mood is not cheerful or excited; it is one of emotional sadness and frustration.
Answer:A. disappointed