Final answer:
Jess desires to learn how to B) swim in the creek from Leslie during the summer in the book Bridge to Terabithia.
Step-by-step explanation:
In the summer, Jess wants Leslie to teach him how to B) swim in the creek. This information can be found in the book Bridge to Terabithia by Katherine Paterson. Jess is intrigued by Leslie's ability to swim and hopes to learn from her.
The act of swimming represents a personal challenge for Jess, just as learning to ride a bicycle or performing a cartwheel might be for someone else.
Swimming is not just a physical activity but also a symbol of growth and development in the story, showcasing Jess's desire to learn new skills and his evolving friendship with Leslie.