Answer:
He is playful and creative.
Explanation:
Toni Cade Bambara's short story "Raymond's Run," tells the story of a young protagonist Hazel Elizabeth Deborah "Squeaky" Parker, and her life of taking care of her brother Raymond, who's disabled. And in accepting her brother's athletic ability, she also came to realize her identity and accepts her life circumstances.
In the given excerpt, Squeaky reveals how Raymond pretended as if "he's a circus performer and that the curb is a tightrope strung high in the air". This ability of Raymond in fantasying common, 'boring' real life as something more interesting shows his creative and playful nature.
Thus, the correct answer is the first option.