Dysgraphia primarily affects a student's ability to what?

Dysgraphia is a specific learning disability that impacts a person's ability to write coherently and legibly. This condition primarily affects the motor skills involved in writing, as well as the ability to organize thoughts on paper. Therefore, the correct answer focuses on the student's capability to create a written response to a story, highlighting the challenges they may face in expressing their ideas and understanding through writing.

Students with dysgraphia may struggle with handwriting, spelling, and composing text, making it difficult for them to effectively communicate their thoughts or narratives in a written format. This can lead to frustration and hinder their academic performance, especially in subjects that require extensive writing, such as language arts.

The other choices—understanding mathematical concepts, engaging in oral communication, or participating in group activities—relate to different skills that are not directly affected by dysgraphia. While a student with dysgraphia may face challenges in various areas of learning, the primary impact of dysgraphia is specifically on the writing process.