Read the passage.Amir could not imagine a better day! He had woken up early and enjoyed a tasty breakfast. The sky was a bright blue, and the sun shone brightly. During algebra, Amir found out he had attained the highest score on last Friday’s quiz. Then, at track practice, he set a new personal best in the 100-meter dash.

Amir’s day includes several positive events: he enjoys breakfast, earns the highest quiz score, and sets a personal best in track. These details show that he feels happy, so “joyful” is the best choice. “Melancholic” means sad, while “respectful” and “casual” do not describe his mood here.

AI-written and checked against the verified answer.