Mild mental retardation is characterized by
**Core Concept**
Mild mental retardation, now more commonly referred to as mild intellectual disability, is characterized by significant limitations in both intellectual functioning and adaptive behavior. This condition originates before the age of 18 and is typically defined by an **IQ score** between 50-69.
**Why the Correct Answer is Right**
The correct answer choice would reflect the characteristics of mild intellectual disability, including an **IQ range of 50-69**, and the ability to learn academic skills up to approximately a 6th-grade level by adulthood. Individuals with mild intellectual disability can often acquire practical skills and lead relatively independent lives with some support.
**Why Each Wrong Option is Incorrect**
**Option A:** Would be incorrect if it suggests a lower IQ range or more severe limitations.
**Option B:** Might be incorrect if it implies an even milder condition or higher IQ range.
**Option C:** Could be incorrect if it describes moderate intellectual disability, which has a lower IQ range.
**Option D:** Would be incorrect if it suggests severe intellectual disability, characterized by an IQ below 40.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that individuals with mild intellectual disability can often blend into society and may not be immediately identifiable as having a disability, emphasizing the importance of **supportive services** and understanding in their communities.
**Correct Answer:** D. IQ level 50-69