Join IDNLearn.com and start exploring the answers to your most pressing questions. Discover in-depth answers to your questions from our community of experienced professionals.
The sources that would give him the most useful information is a medical journal about learning disorder research.
Learning disorder is a problem in which people feel difficulty in processing and grasping the data and information that they are studying. These disorders are Dysgraphia, Dyslexia, etc.
Thus, the correct option is D.
Learn more about learning disorder
https://brainly.com/question/9754657
#SPJ1