What is a characteristic of dyslexia?

The characteristic of dyslexia is primarily associated with difficulty in accurate and fluent word recognition, as well as challenges in spelling and decoding abilities. Dyslexia is a specific learning disability that affects a person's ability to read, which in turn impacts their overall literacy skills. This difficulty arises from neurological differences in the areas of the brain that process language. As a result, individuals with dyslexia often experience challenges with recognizing words quickly and accurately, leading to slower reading rates and issues with spelling due to the phonetic decoding required in written language.

The other options provided refer to challenges that are not directly linked to dyslexia. For instance, struggles with mathematical calculations might indicate a different learning disability, such as dyscalculia, while excessive talking in class or difficulty with social interactions could relate to behavioral or social-emotional issues rather than specific literacy challenges. Thus, the defining characteristic outlined in the correct answer distinctly highlights the reading-related challenges emblematic of dyslexia.