Concept:Dyslexia is a common learning disability that affects the brain’s ability to process written language, mainly causing trouble with reading and spelling.Explanation:Dyslexia makes it hard to recognize and match letters with their sounds. Learners often confuse letters that look or sound similar. They struggle to read words, understand written text, and spell correctly. This difficulty is primarily in reading and spelling, not in speaking, expressing, or standing. For comparison, other learning disabilities include Dysgraphia (affects writing), Dyscalculia (affects math), and Dyspraxia (affects motor coordination).Answer:C. Reading/Spelling