This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Social science, Mental health & Genetics, Subject name: Social & Preventive Medicine
Reading and retarding skills of a moderate mentally retarded child? 
Select and explain. 
A. Reasonable, B. Basic, C. Minimal, D. None
B: Basic
Answer: B: Basic 
Explanation: LEARNING DISABILITY: Mild disability Moderate disability Severe profound disability IQ level 69-50 49-35 <35 % of cases 85% 10% 5% Self-care Independent Need some help Limited Language Reasonable Limited Basic/None Reading & Writing Reasonable Basic Minimal/None Ability to work Semi-skilled Unskilled, supervised Basic tasks, supervised Social skills Normal Moderate Few Physical Problems Rare Sometimes Common Aetiology discovery Sometimes Often Usual Ref: Psychiatry by Harrison 10th edition table 17.2